Nathan Scott is Tree Hill High's biggest basketball star and is dating Peyton, a cheerleader. Nathan's half brother, Lucas, joins the team - and threatens to take both Nathan's spot in the lineup and his girl.

Lucas plays his first game as a Tree Hill Raven...and chokes. He isn't the only one confronting insecurities: Peyton can't find the courage to submit her drawings for publication.

Frustrated by Lucas' growing popularity at school, Nathan searches for Lucas' weak spot, and has the team begin to initiate hazing incidents against him. Nathan also tries to seek tutoring help from Haley. Brooke begins to fall for Lucas. Meanwhile, Peyton is furious with Lucas for submitting her drawings to the local newspaper without her knowledge.

After Lucas crowns another good game with the winning point, Nathan switches to plan B, inviting him to a party at his dad's luxurious beach house where he cleverly humiliates him with a truth game and a video of Lucas ma calling Dan her dream husband. After Lucas walks out livid, Haley is stranded, accepts a ride back from Nathan in Peyton's car and accepts to keep tutoring him since failing grades would kill all his and Dan's dreams. On his way back Nathan crashes into Lucas in the car of one of Keith's clients; Nathan thinks he can bluff his way out making Tim his false witness, but there are nasty consequences for both brothers, their girls friends and their parents.

After the disastrous party and car crash, things still look bad for everyone. Peyton meets coach at the cemetery and exchanges grief and memories about her mother's death in a car accident the one time she ignored a red light and his late wife Camilla. With the benefit match between the Ravens boys and their fathers coming up, captained by Nathan and Dan Scott, Keith is honored to be asked as substitute by his nephew Lucas, and joins in with his mother asking him to reconsider his intent to change his last name to hers after Dan barged in at Keith's auto shop saying Lucas is unworthy of the name. At the game, Dan is the only father who can't just enjoy being creamed by their heirs- he even barges in with the boys after their glorious first half, barking so badly Keith has to defend even Nathan. Dan's behavior on the court is no more sportsmanlike, even at Nathan's expense- the golden boy's filial loyalty gets shocked in both senses of that verb.

Things are so bad between the Scott half-brothers that they are thrown off the court for rolling over the floor fighting each-other during a game in a North Carolina hick-town, Pinkerton. Brooke is hurt and scams a strong painkiller from a med student, but takes an overdose which forces Haley and Peyton to give the 'drunk' a ride; despite car trouble, they'll have it relatively easy getting back home. Coach decides to punish Nathan and Lucas by making them walk some 30 miles, which turns out just the 'fraternal' male bonding they needed as they are not given a lift but abducted by local hicks who force them to go shopping in their undershorts marked 'Ravens suck' on their backs; even after doing so, their ordeal is far from over... On the home front, Dan and Keith seize the evening without the boys to take Nathan's mother, Deb and Lucas's mother, Karen out, but land in the same restaurant where they get into a fight of their own.

The night of Dan and Deb's annual basketball appreciation party stirs up old wounds and new feelings as Karen makes a new friend, Keith faces off with his younger brother once again and Lucas finally makes his move on Peyton. Also, Haley and Nathan grow closer until Brooke spreads a vicious rumor that leaves Haley devastated.

Brooke takes Peyton to a college party but the night takes a bad turn when someone drugs Peyton's drink. Nathan and Haley go on a scavenger hunt date set up by Brooke in an attempt to make up for her actions at the party the night before.

Tension mounts now the Ravens may get their first ever undefeated season if they win against Cove City, but instead of encouraging his son, Dan barks at Nathan he doesn't go deep enough while ordering him to convince his mother he's not unhappy, thus blaming the poor kid for her punishing him by running Karen's place. He decides to take amphetamines supplied by Tim's brother, which make him so aggressive coach throws him out at training; when he gently tries to take the next step while kissing Haley, she also shows him the door. Brooke gets Lucas to go out as 'reward' for recommending a book she lobes, then makes him drink and- get a real tattoo, to Keith's in loco parentis despair and fury. At the crucial game, Nathan's second pill dose lands him first on the bench and next in hospital. Dan doesn't believe the doctors correct substance diagnosis; he didn't even call Deb, who tells him to leave home for good.

After Peyton walked in on Lucas kissing Brooke the night she got him drunk, they all feel uncomfortable but decide to stay friends; Haley and Peyton even team up to organize live entertainment in Karen's café. Because of Nathan's pills-disaster, coach cancels basketball practice till further notice, telling livid Dan -who fears for the Ravens' shot at a perfect season- 'the game is no fun any more' so he takes off pressure. Nathan feels happy again taking things easy with Haley, but Dan decrees they're 'going to have a good time' on the golf weekend he planned with Deb till she threw him out, leaving the boy no escape from worrying about his parents plausible divorce in between humiliating golf 'lessons' in his dad's arrogant style, till he walks off shouting nobody can be happy with a bully like Dan. Jake shows Lucas why coach cuts him slack: his 6 months old baby Jenny, abandoned by her mother, and gets the advice not to keep that secret any longer. Jake uses the 'open mike' at Karen's to out his baby; afterward Lucas invites Nathan to the Rivercourt where all the kids enjoy informal basketball, putting coach and Keith's worries to rest.

After Deb drags Dan and Nathan to a family therapist, where they only fight and each expect Nathan to take their side, Nathan looses faith in everything except Haley. Brooke begins to feel jealous about Lucas, but insecure as they have almost no common interests; Lucas and Peyton both reassure her. Lucas finds Peyton's dad home for once; he tells her another, even better paid job will drag him for months to New Zealand... Nathan talks to Keith and coach, who both tell him to do what's best for him, even if that means dropping basketball; he cuts practice and classes, even takes Haley with him playing hooky, to Dan's disgust in more then one way...

On Dan's birthday, his parents turn up unannounced; Dan tries to make everybody keep Nathan's quitting from them, and Haley offers to come for moral support. Just when she was counting off her dad's return home, Peyton gets a call a storm knocked four men off his ship, and she must identify if a corps is his, so Lucas drives her, but the roads are blocked too so they must spend the night in a motel, but Lucas doesn't forget Brooke. At the Scott diner, the mothers tell the truth, how grandpa Royal Scott also pushed Dan too hard till he took his mother's advice to use a knee injury to quit basketball altogether; like coach Nathan walks out disgusted, losing all respect for the man he always tried desperately to please, and decides how to deal with it.

In therapy with Deb, who by now wants a divorce, Dan tells he cut Lucas out of his life like a trapped man amputates his arm to survive. Haley gets basketball lessons (to pass PE) from patient Nathan, who to everyone's relief is back with the Ravens. Coach tells Keith he promised his wife 35 years ago they would 'start living' after 20 years of coaching; he just won 500 matches, but what about his most important intention: to make a difference? Strolling on the beach Dan meets Carrie, who fails to seduce him when invited to eat his spare steak as Nathan declined, but just then Deb walks in. Now Brooke believes Lucas is her first true love, he and Peyton don't come clean about the motel; but Haley overhears them and has a row with him. Nathan convinces coach he does matter for boys like him who still need guidance. While driving with Lucas, Keith is hit by another car. Dan is nearby and rushes Lucas to the hospital.

When the doctor tells Keith it's too soon to tell how bad Lucas's injuries are, he informs Haley, who throws Nathan out immediately and calls Peyton, who is with Brooke at the time. A surprised Karen learns Dan saved Lucas by bringing him in and giving permission for surgery as his father, while Keith caused the accident under nearly illegal influence of alcohol. Karen and Deb comfort each-other at Lucas's sickbed, where Peyton briefly and Brooke more elaborately meet Karen. After Haley gives him the silent treatment, Nathan sadly admits to Deb he barely minds she's separating from Dan. Karen hears her insurance probably won't cover all the hospital bills, and finds out later that Keith paid the bill. Coach assures Karen not to doubt Keith's love for Lucas. Jake and the park court basketball gang make a get-better-video for Lucas; even Tim joins in making a chalk drawing on the court. Dan cancels marriage mediation, and isn't impressed by Deb's lawyer either, but gets a hug from Karen. Peyton tells Haley Lucas reads her soul. Nathan says at Lucas's sickbed he envies him sometimes and suggests he make up with his loved ones. Lucas wakes up with Nathan on his bedside. Nathan goes to get Haley, telling her he doesn't regret having courted her for the wrong reasons as she changed him for the better, then gives her a ride to hospital.

Now Lucas is out of the coma and released home, where his ma tries to make him take it easy on doctors orders, Jake brings him a games console as a get-better-and-return gift from the Ravens and uses the opportunity to get a job in Karen's café. Nathan tells his ma he understands his parents' divorce is the only option by now, and turns all his attention to Haley, who makes him realize he's not a baby who must go where he's told but can legally choose; both parents seem confident and determined to win him over, but Dan convinces him Deb doesn't stand a chance because of her secret past. Lucas has decided to break up with Brooke -but didn't tell her- sneaks out to Peyton and collapses there; he is rushed to the emergency room, Brooke finds out and faces Peyton bitterly. Although Karen is determined to repay Keith Lucas' medical bills, since Keith 'can't repay' having endangered his life, he cashes in all his savings and plans a mortgage on his garage.

Nathan must choose which parent to live with after Dan and Deb's divorce. Dan forces Nathan to make the decision by threatening to reveal Deb's darkest secrets in court unless Nathan chooses him. Meanwhile, Lucas meets a beautiful stranger who challenges his perceptions of life since Lucas' car accident.

Nathan has moved into his own apartment, away from both parents. To prepare for a match away, Coach orders Lucas to coach Nathan's weakest points, and makes them uneasy roommates; in the evening the boys sneak out but the strip joint Tim 'could get them in' turns out to be queer. Peyton and Sparkle Classic cheer-leading coach Brooke also find themselves bunking together; when Theresa falls sick, Haley is recruited and gets a crash course. Mouth spies the other teams -he demonstrates with more talent then most girls!- so they rework both choreography (Brooke) and music (Peyton); after training Brooke gets the hot pool opened, the boys jump in and coach grills chaperons Karen and Peyton's dad Larry Sawyer, but nobody minds. The new routine rocks, so Brooke wins the choreography prize. In the game Nathan uses the fade-away Lucas proposed and scores the winning point. At the home front manager Keith feels smothered by Dan and his men, and makes a drastic choice.

Lucas, Nathan and Jake are auctioned off to the highest bidder in the annual "Boy Toy" charity auction and the night leads to surprising developments with old flames. Meanwhile, having missed out on the auction, Brooke ends up with Mouth and gives him the night of his life.

Lucas believed he saw more then an auction slave's duty when Nathan kissed Peyton, but confronted Nathan is convincingly indignant. Brooke and a test kit tell Lucas they're expecting a baby. Jake still refuses Nikki any part in Jenny's life. Nathan tells Haley he doesn't understand she won't share his bed but tattooed his jersey number on her backside. After 15 years Keith proposes to Karen, who 'isn't ready', and decides to leave. Dan tells Lucas not to let Brooke ruin his life as Karen did by having him; and bursts in at Nathan's to tell him the beach-house will be waiting 'when' he hits rock bottom.

Keith has a solicitation as auto-shop teacher in a Charleston school; Lucas is heartbroken his surrogate father may move that far away. Haley and Nathan finally feel cozy living together, but when Dan finds out he sold the car he gave his poor son, he demands the money it fetched unless he moves in with him again- so the kid chooses to stay poor and takes a lousy job serving food in the mall, where a kid he never even noticed in his history class is now the sports heroes' vindictive boss- one visit by Dan convinces even him to go easy on the long-envied golden boy whose silver spoon came at such a price, so he won't miss his own housewarming party. When he gets there, Mouths music and Nikki literally fighting with Peyton have alerted the police, so Dan -who just got in bed with Deb- gets a call from the sheriff to bail him out.

The knowledge that Dan actually requested joint custody over Lucas but was turned away by Karen makes Keith doubt her and the Scott boys, who now train together as friends, how their lives would have been growing up as brothers. Peyton and Brooke lose Jake's baby daughter Jenny in the mall, and find Nikki picked her up. Haley is furious when she finds porn sites on Nathans computer, even though everybody else considers cyber-sex innocent fun, no competition for her. Since coach Whitey must have an operation, Dan manages -to his fury- to be made Ravens coach for one match, and works the boys like a penal company. Jake thinks he'll lose a custody battle against Nikki, so he considers moving to family in Savannah and gets Peytons support. Lucas comes to a decision which worries both Karen and Keith.

Lucas and Nathan bear the brunt of Dan's abuse as he coaches them into the playoffs, pushing both of them to their breaking points. Haley is stunned after Dan threatens her, causing her to reconsider her relationship with Nathan. Meanwhile, Whitey learns that his medical condition may be more serious than he first expected, and Dan learns a shocking secret from Deb.

After Lucas and Keith learn that Dan had a heart attack and is still in the hospital, they decide it is best for them to return to Tree Hill. When Deb learns about Haley and Nathan's marriage, she grows hostile. Meanwhile, angry that Lucas left Tree Hill without saying goodbye, Peyton and Brooke try to mend their friendship.

With the assistance of Peyton and Brooke, Lucas throws Nathan and Haley a wedding reception. Although Haley's parents support Nathan and Haley's marriage, Deb has a difficult time accepting it. Meanwhile, Dan's recent heart attack causes him to try and mend his relationships with Deb and Lucas.

Although Nathan and Haley are already married, Tim insists on throwing Nathan a post-wedding bachelor party, while Brooke throws Haley a bachelorette party. Meanwhile, Lucas tries to decide whether he should visit Dan in the hospital. Karen decides to go back to school and Nathan gets a job working for Keith at Dan's dealership.

Brooke tells the Latino pool boy he's not allowed to use the swimming pool, and when he gets out finds he was skinny diving- the next morning he turns up at her school in a sports car; it's her new neighbor Felix Taggaro, who is even more flirtatious, self-confident and sassy then she and uses Mouth to find his way. At college Karen gets to know personally her business economics professor Andy Hargrove, a retired self-made tycoon. When Lucas tells he wants to use Dan's rehabilitation to get to know him properly, Nathan gives him his blessing. Dan orders Keith to fire Nathan, to no avail. When Keith advises against the second hand car Haley and he hoped to buy, he generously spends the money on a keyboard so she can work on her composing talent- and gets barked at to take it back by his ingrate wife. Peyton gets a chance to manage a famous musical duo, but only if she supplies them with and uses cocaine. While taking a sports car for a test-spin, Dan makes Lucas accept Felix' race dare, and offers him the keys- which chases him away. Deb encourages Karen finally to start her long-dreamed bar extension to the café and is asked to help run it as a club. Now she's poor, Brooke is caught shoplifting but Felix saves her bacon. Keith offers Nathan to learn car mechanics by fixing together a car/wreck he intended to strip for parts, which Nathan may then keep.

Felix organizes a "dare night" to test the limits of his new classmates. While out playing the game, Lucas meets a mysterious new girl, Anna. Peyton tearfully confesses to the church that she recently tried cocaine and Keith is caught off guard when a beautiful woman comes to the shop and begins flirting with him. Meanwhile, Karen goes on a date with Andy, her younger professor.

Peyton meets cocky record shop clerk Chris Keller who turns out the only good musician on the club's auditions besides Haley, who has too much stage-fright. Coach won't listen when Lucas genuinely suggests to reconsider an eye operation. Lucas learns Anna is overprotective Felix' sister. Nathan gets a once in a lifetime invitation for the three months Highfliers basketball summer-camp in Florida. Now her parents are financially ruined, Brooke decides to recruit Felix as her purely physical toy-boy, and is forced to hold a garage sale. Dan invites Deb to watch the meteor shower together, Andy asks Karen, Anna gets Lucas to. Keith has a romantic date with his car-naive lady-client Jules. Nathan pretends to Haley not be accepted for Highfliers fearing they can't afford it and makes her overcome her stage-fright. When Dan realizes Deb is not ready for reconciliation, he pretends his actually excellent rehab-results are bad. Mouth proves his love for Brooke by buying back the doll-house she failed to overprice enough.

Felix continues to be Brooke's sex-toy. Chris makes Peyton beg for him to perform at the Tric club opening and hands her a 'rider' (list of demands), which inspires Brooke- about non-committal rules for Felix. Dan tells startled Karen he forgave Keith for sleeping with Deb, news to her. Keith asks Jules to the opening, they become exclusive. Coach, in hospital, understands Nathan gives up Highflyers for Haley's sake; seeing the crowd gives her major stage-fright, but when Chris leaves the stage because the teenage crowd won't listen quietly she plays, to applause, then he invites her to collaborate musically. Mouth hoped to get a shot at Brooke, but she commends him as a- sweet little brother, ouch; he accuses Felix, Lucas gets it backward and catches a solid punch, mainly for dating Theresa; Craig throws Felix out, Mouth brings drunk Brooke home, who only wakes up when Felix is beside her.

Brooke, Peyton, Haley and Anna have a slumber party at Haley's apartment where secrets and lies are revealed. Meanwhile, when Lucas and Nathan go on a road trip to a Bobcats game, Nathan reveals he is being tested for the genetic defect that caused Dan's heart attack and suggests Lucas do the same. After an awkward encounter with Keith and Jules, Karen and Andy share an intimate night together.

Haley makes Nathan agree to go to the prom even though his parents will be chaperons; Peyton pays Brooke's chosen dress for it; Lucas tells Felix he's taking Anna; Mouth comes alone 'on the prowl'. Lucas learns Dan is hiding his full recovery. Haley finally accepts to play with Chris in Peyton's club, but they run late, leaving Nathan dancing with his ma; when she finally arrives they are crowned king and queen of the ball but just then Nathan learns she worked with Chris even while he was in Charlotte, and ends up showing he gave up Highflyers for her. After Mouth tells her he, not Felix, took care of her while she was drunk, she's livid and tells Felix he'll never have her heart.

After the prom, Anna sleeps over at Peyton's- Felix sneers she's getting a worse reputation then his, while Peyton has a hard time with lesbianism-innuendos, even though Brooke says that appeals to boys, but ends up making a stand at school. Brooke finds Nathan slept on Lucas's floor; when he goes home, Haley tells him she respects his sacrifice and wants him to go to Highflyers, but won't do the one thing he asks, stop seeing Chris, so he walks out again and warns Chris in ominous terms and grip. Brooke blames Felix for her broken windshield and rages at him; he finds out it was Mouth, who also tells Lucas, but pays anyway; in the end he convinces her of his love. Dan takes the reins back at the dealership and offers Keith to stay on. Karen orders Lucas to take the medical test, or no basketball anyway- Nathan confesses he told her. Chris gets a chance to make a tour, asks Haley along and kisses her again. After Deb confesses her infidelity with him to Karen, Jules gets a call from Keith he loves her, and reports it to Dan

After Deb's confession to have slept with Keith, Karen shows her the door and later has a misunderstanding which makes her break up with Andy. Haley chickens out on her music career at the last minute, so Chris leaves alone. When she gets home, her older sister Taylor is there. Nathan hopes she won't remember she was his first sex partner at a party in the beach house. They become friends and he decides she can stay a few weeks. Jake is back, without Jenny, for a few days he spends mainly with Peyton. Lucas finds out how Jules' poverty drove her to break Keith's heart. Felix has a fight with Lucas for 'hurting Anna' -who later confesses to Lucas she's just lesbian but hoped to be bi. Karen and Andy ultimately make up.

Karen decides to make Lucas's life as miserable as possible till he takes the heart test and asks Andy over while his house is in a contractor's hands. Brooke needs a job- the Crab shack hires her, but not as waitress, just 'PR' in a crab suit; she quickly makes friends with the other underpaid girls but is the only one to develop a militant labor union attitude. Lucas confronts Dan about Jules, and is told about Debs adultery with Keith, who cannot deny it and swears Jules is his true love. Taylor sees Haley's tattoo and bugs her and Nathan about not following big sister's own advice in the past; when Nathan warns her to stop hinting at their first night she bitches back the full truth can hurt him more- so he tells Haley himself, who needs a cooling off period but then understands it was before they knew each-other; all three make up. Lucas confides about Jules to Anna, now he knows her lesbian secret. Keith offers Luke to take the HCM-test together, now Jules wants him to. Dan hosts and even cooks for a dinner with Keith and Jules, constantly getting at their and Deb's nerves, and afterward warns her Keith won't forgive her if he tells him their dirty secret; Keith tells Lucas Jules just accepted his wedding proposal. After researching regulations, Brooke starts hard action- they are all fired, and threaten to tell the public about his inferior crab supplies, and get a raise, but quits anyhow and turns her attention to Felix and running for student council president. Karen gives up forcing Lucas- and hears he just took the test.

Brooke plans her presidential campaign with Felix; her opponent is confident, never-defeated Erica Marsh, who lives for the job. Dan asks Lucas to move in with him while offering Keith to pay for a grand wedding with Jules. Nathan discovers lovers e-mail to Chris from Haley on their computer, believes her most are from Taylor and they decide the stirring sister must leave. Jake is back for good, moves in with Peyton and asks coach for a good word at school. Erika plays the campaign dirty, so Brooke decides to pull all the stops and asks Lucas to write her a killer speech- he suggest a J.F. Kennedy address. At the club Tric, Chris Keller is back, as artist opening act; he also dares Nathan about Haleys love, and once the main act 'the Wreckers' has asked him along on their tour invites Haley to join them- she tells Nathan she wants to, solely as a unique career opportunity, and is told to choose: the tour or him, and yet she goes. Karen fails to stop Lucas moving to Dan or at least find out why: he will pay for Lucas' medication, as he was not tested negative but showed her Keiths results.

Deb is angry to hear from Dan Lucas moves in, but hopeful now Haley has left Nathan he might also return. Nathan is a wreck, and seems determined to wreck his school-prospects; he won't listen to anyone, even hits the still taunting Dan. Jake and Jenny live in Peyton's room, but she is reluctant to become intimate again. Erica stops at nothing to defeat Brooke, but clever speeches by her and Mouth still turn the tide. Lucas seems to feel at home with Dan.

Coach tells the students of Tree Hill High to make a video recording for the traditional time capsule they expect to be open in 50 years. When Mouth tells it's sometimes opened early, Anna convinces him to help erase hers- they can't resist watching some other. Lucas moves in with Dan; Andy helps Karen to fight Dan in court, but she fails to remain rational. Nathan continues his self-destruction, believing Haley will never return, quits his job at Dans garage and gets Lucas and him arrested; they fight over Dan and Keith so Lucas tells his true motivation, and Dan understands when Nathan tells when he bails them out. Peyton and Jake go on their first date. Brook starts to really think about what she can do as president. When Jules tells Dan she'll tell Keith the truth, he says he may just keep off anyway. Jake and Peyton are becoming comfortable with intimacy.

Brooke is high: she's about to be installed as school president and her dad should get another well-paid job. Nathan, still drinking, is livid after a call from Haley she'll be on TV, refuses to go to Keiths wedding, gets no sympathy from coach -who even rats out his fake ID in the liquor store- and drives Deb to abuse pain killers, as Lucas soon finds out. Andy thinks Karen can get Lucas back now his detective found Dan pays all expenses for some Emily Chambers. Chris makes it appear on national TV as if he and Haley are a couple. Best man Lucas takes Brooke, Jake and Peyton are late as they are too horny, Nathan turns up drunk and cursing outside the church. When Andy learns Jules is Emily, Karen asks and guesses what Dan pays her for- Jules runs off, only Dan triumphs. While Nathan burns his memories of Haley, Deb tells him to go get her back. Brookes dad got the job- but must move to California next week...

Niki turns up with a court decision in absentia awarding her custody of Jenny- Andy offers Jake legal help as fleeing is losing. Lucas goes to his ma now the truth is out but decides to stay with Dan as he considers himself the enemy's only weak spot. Keith feels betrayed by everyone; Dan can't resist gloriously admitting having set him up and is physically assaulted. Brooke dreads her impeding departure and realizes she may stay with a friend; Peyton is willing, but her parents refuse. Anna turns Felix in to the principal for writing dike on Peyton's locker, with disastrous results: he is dumped by Brooke, his parents send him to military school, and Anna even blames him for not knowing she's the lesbian. Nathan drives to where Haley tours, pours out his heart ready to do everything for their marriage, but only hears she wasn't ready and right now the show comes first, so he returns. Lucas makes Brookes year: Karen and he take her in. Keith leaves, anywhere and maybe forever.

Lucas and Peyton hide Jake and Jenny at Nathan's place while he chases Haley. Lucas finds Dan's secret hiding place for cash and a secret ledger; when he and Andy come to get it at night, all is gone. Anna's former lover Darby turns up; she ends up coming clean to her parents, who still love her, but returns to boarding school. Nathan accepts an invitation to spend the night at the bar where Taylor works; they drink heavily and participate in the bar dancing show. Niki claims Jenny isn't Jake's biologically. Brooke stays late at a party without permission, misses her shift in the café, and learns to pay her debts and her dues chore-wise. Jake won't hear reason from his lawyer and chooses jail over handing over Jenny to irresponsible Niki, even if that's his best chance to get her back in a few months.

Deb's cool younger brother, race pilot Cooper 'Coop' Lee, visits his favorite nephew Nathan and invites him and Lucas to Lowe's Motor Speedway (now Charlotte Motor Speedway), where the boys and his kid brother Jarret get a crash course from competitor Ray Green's daughter Daytona 'Toni' in not crashing for a taste of the race. Dan informs college about Andy's improper relationship with Karen- he must choose and gives his notice. Mouth fakes being drunk so Brooke can 'drive him home'; Erica is a real client, and hits on with him, kissing. Dan finds Deb wasted in the garden. At the day of the (private) race, competitive athlete Nathan's pride is hurt, so he tries to break the track speed record but crashes with bad long injury; the doctors tell Deb her blood is too 'rich' in pills to donate; Toni thinks Nathan was suicidal. Coach tells Peyton Jenny is safe in a small Florida town.

While Nathan is unconscious in the hospital, he dreams a nightmare alternative version of his life, in which Dan married Karen and lives with her and Lucas, while Keith is the successful car dealer, Dan is assistant coach and trains Lucas as the Ravens star. Nathan is the poor underdog living with Deb -who runs the café- but may still be recommended for Highflyers by coach Whitey if he wins a duel; Haley is his girlfriend, Brooke makes a pass at him. Karen cheats on Dan with Keith. Peyton goes steady with Lucas but tells Haley to warn Nathan about Lucas' dirty plans; Dan's attempt to bribe Nathan off actually motivates him to fight, so he is abducted, bound and dumped by Lucas's Ravens hardcore. Peyton dumps Lucas, who loses the duel after she picked Nathan up.

Nathan is recovering and back home, but won't tell Lucas what drove him. Brooke pieced together a shredded invoice Lucas sneaked home, so she learns about his investigation for Dans car dealership scam, and Andy makes sense of it but feels Lucas should stop taking risks. Nathan was relieved to hear his hospital bills are all paid, when Dan bursts in; he refuses to move back home even during revalidation, but keeps annulment forms. The kids planned a benefit film night for Nathan's medical bills, and go on just for the fun; to their surprise he appreciates an accidental films switch showing car accidents. After talking to Peyton he wants to forgive his ma for fleeing into pills, as she begs in a letter, but understands his insurance wasn't paid, so he sees Dan who confirms he paid, the rent too, and ends up believing he could be on the road to becoming a bitter bastard like him if he makes the wrong choices; he even asks Lucas to back off his investigation and decides to return home; Haley got her annulment petition offered by Dan too. Andy shows Lucas the profits went largely in a college fund for him; he moves back to Karen when Nathan returns.

The class's last essay assignment is about what they lost during the year, which sets some thinking. Karen attacks Dan when she learns he tries to get Andy deported; Andy cleverly trick him to check the black books hiding place. Jake has high hopes to get Jenny back now his attorney found Nikki lied under oath about attending college; but the day before, Nikki visits him to show she found Jenny already... Coach encourages Nathan to go to Highflyers, as he has grown in character enough, but Dan claims his ma Deb will collapse again if he leaves after her return. Karens club TRIC fills for Jimmy Eat World. Lucas and Brooke visit New York for an overnight stay with Haley; Chris says they never had sex, but she refuses to give up her musical life. Jake tells Peyton to forget him as his quest for Jenny looks desperate.

Lucas and Brooke's relationship becomes more intimate when they travel to New York for an overnight stay with Haley.

Haley turned up at Nathans door, asking to be together again, but he is urgently called away to the fire in Dan's office- Deb asks her along. Peyton tells Lucas about Elisabeth who claims to be her -dead- mother but knows things; her dad now says her beloved ma was not her biological mother- she turns away from both. Three months later Brooke returns walking straight up to Lucas, who was however just waiting for Karen. Nathan finally can go to High Flyers, and Haley's declaration of 'never ceased' love doesn't get to him; but there he remains torn between his love for her and the shattered trust. Dan says in confession he will remember who drugged him and let him to die in his burning car dealership, and then...

Brooke has a end of the summer party on the beach; Nathan is home from basketball camp; Lucas deals with Brooke's rules for dating; Peyton deals with family issues; Haley tries to tell Nathan how she feels.

Lucas and Haley dig up, as each year, their previous predictions for the new school year; he decorated Brookes locker- they are arranged alphabetically, making the Scott brothers and Haley neighbors. Mouth pod-cast-interviews Ravens-star Nathan. Dan warns coach Durham he plans to have the school board remove him and Lucas he remembers his arson. Ellie tells Lucas the marijuana is for her cancer pain. When Haley asks coach for help with Nathan, he just gives her a detention slip for entering the boys locker room- Nathan is there to, but pays her no attention; next day, same place, they talk a bit. When dad Larry and Ellie wait for Peyton, she storms out blaming Lucas for 'trapping' her; left alone, dad makes her consider a shrink. Karen reminds Nathan how desperately he wanted Haley back. Dan tells the board the Ravens can be North Carolina state champions without Whitey, Karen praises his lessons on life for the boys- he stays on, but gives Mouth a scoop: he'll retire next year. When Dan nearly chokes Lucas, Peyton stops him and makes him tell he didn't start the fire but found Dan and dragged him out- Lucas now regrets that, Dan says a real man had left him and demands secrecy. Haley is happy to hear Nathan considers an annulment a lie, not when he proposes a divorce instead, hopeful again when he says the legal one year- waiting period gives them time to reconsider.

It's party time in Tree Hill. A masquerade ball at Tric provides the perfect opportunity for Haley to win back Nathan's heart, and for Brooke to seduce Lucas. Punk-pop sensation "Fall Out Boy" performs amidst the costume madness, while Peyton tries to come to terms with the new mother in her life. Meanwhile, Dan gives Deb an ultimatum, but soon finds she's a much more worthy opponent than he thought.

Dan presents the Ravens opening show for the new basketball season, but after the choreographed cheerleaders the boys come rolling in with a public fight between Lucas and Nathan over Haley; then a major flashback... Brooke and Peyton audition would be-cheerleaders; the obvious winner is arrogant, slutty Rachel, who Brooke accidentally indicates when telling Lucas to date another girl. While Dans team plans his mayoral election campaign, Deb deliberately walks in dressed sluttier then a drunk whore. Captain Nathan puts Lucas on the bench for back-talk. Brooke wants to field Haley instead of Rachel. Coach grudgingly introduces Dan and smiling, to everyone's surprise, his late-hour mayoral opponent: Karen Roe! When Dan announces the team, Lucas calling Nathan 'just like' his dad starts their fight, and Brooke attacks Rachel. Coach is livid at the brothers- and makes Lucas co-captain. Rachel sits naked in Lucas's car, and Brooke chews both of them, to his surprise admitting she only wanted to be desired exclusively by proclaiming non-exclusiveness.

In an effort to keep her cheerleaders from fighting over the same guys, Brooke devises a `Fantasy Boy Draft', Haley and Peyton butt heads over Nathan, while Lucas has trouble keeping up with the brutal pace of basketball practise. Meanwhile, as the election nears, mayoral candidate Dan clashes with his new opponent.

As the fantasy draft dates begin, Brooke finds herself on an unusual double date, while Lucas gets closer to Rachel. Meanwhile, Karen and Deb take their campaigning to new heights.

After Lucas surprised Chris with Brooke, even her self-confidence isn't enough to remain assured she hasn't really lost the possible love of her life. Chris informs Nathan whom he thought already knew and gets knocked for once more breaking up a relationship for someone he's not even truly in love with. Dan phones the radio station to point out on air his competitor Karen is unmarried and checks on Nathans condition for the new season, but gets the cold shoulder. Tim looks forward to the boys getting tattoos this year. Karen nor cake can cheer up Lucas, who doesn't even feel like basketball anymore; Nathans advice in the locker-room to concentrate on his playing and forgive Brooke for love's sake don't help either. Coach tells the team he'll retire after this season, and expects them, his best team ever, to prove so by results; Lucas stinks worst of all at the first game, which is an utter loss. Haley and Nathan are back on speaking terms. Mouth shows 'mayor' Karen his cell-phone recording of Dan roughing up Nathan and coach throwing him out after the match.

Lucas reveals that he knows who tried to kill Dan in the dealership fire. Brooke, Peyton and Haley find themselves behind bars. Chris Keller convinces Nathan to be his wingman at a high-stakes poker game. The residents of Tree Hill finally choose a mayor.

Lucas and Peyton take a road trip together to find Ellie. While out of town, Lucas reconnects with a friend from his past.

Another terrible Ravens game; coach blames everything on total lack of team spirit. Keith is back, admitting to Lucas his fiancé Jules was not what he hoped, and just no match for Karen. Brooke must take the couch at Nathans place, but gets invited for Rogue Vogue, a fashion talent show in New York. Nathan fears Dan was right to suggest Haleys sudden lack of birth control is all too convenient. Coach punishes the boys by transferring them from the glorious stadium to a dump which they must first clean up; Nathan walks out, but after talking to Lucas and Dan about his chances for a scholarship etc. returns. Keith laughs at Dan's promise to prove he's the arsonist, but tells Karen he had intended to kill his brother but was beaten to it by Deb and helped her flee. Lucas shows Nathan the tactical advantages of studying the flaws in the old court. Karen warns Lucas to be careful with Brooke in every respect. Brooke finds out gratefully her design work was entered by- Rachel! Karen kisses Keith, but he is arrested for the murder attempt on Dan before her eyes...

Keith is arrested as suspect for the arson attempt on his brother Dan, but to the mayors anger soon released for lack of proof. The kids are supposed to get counseling about choosing a college, but nearly all have their minds elsewhere. Nathan and Haley make up, but have chosen colleges 3000 miles apart. Brooke believes Rachel deliberately entered her for the New York fashion contest because it's the same day as the cheerleaders' high-day, the Classic. Ellie insists Peyton shouldn't doubt about going to college at all. Mouth has enough of Brookes bitching, so he goes to the game with Rachel. Because Nathan missed political science class now Dan teaches that course, coach benches him, just when the major East Coast talent scout is present; still he gives Lucas the winning tactical tip, which really impresses coach...

A violent rainstorm knocks out the power in Tree Hill, leading Haley to Nathan's doorstep and Brooke out into the downpour for a dramatic confrontation with Lucas. Peyton finally confronts the truth about Ellie's illness, while Marvin is tempted by his new friend, Rachel. Before morning, secrets are revealed, relationships are tested, and new love gets hotter than ever.

It's the weekend of the Classic in Charlotte for the Ravens and their cheerleaders. Haley and Peyton go on a road trip with Brooke to New York for the Rogue Vogue fashion show before hopping on a plane to Charlotte in time for the secret sparkle classic cheer competition. A schedule change in New York though means Brooke has a big decision to make. Rachel does everything she can to mess with Brooke and Coach Durham interferes with chaperones Karen and Keith's weekend.

Last year's time-capsule is maliciously opened 49 years early, revealing many kids' embarrassing secrets, lies and even worse truths, shown on TV screens at school and even on the Internet. Peyton prepares a benefit for the National Breast-cancer action, in memory of her recently deceased ma Ellie Harp; it rocks and brings most kids back together. Keith announces his engagement to Karen and his plan to adopt Lucas. Jimmy Edwards, who bagged the worst on everyone in his time-capsule speech, gets roughed up, but the Scott brothers, Mouth and Rachel save his bacon. Dan reminds Keith how close they were as boys and hands him the black ledger but is scorned and burns it. Nathan and Haley enjoy closeness again. Lucas embraces Keith as his future father, without step-.

A dangerous day at Tree Hill High gives Nathan and Lucas a common goal, as they put their lives on the line to save their friends when a distraught student comes to school with a gun and holds Haley hostage.

The aftermath of the school shooting and the death of Jimmy Edwards forces everyone in Tree Hill to examine their lives. Nathan reassesses his relationship with Haley, while Brooke and Rachel join forces to heal the student body. Dan must deal with the ramifications of shooting Keith, while Lucas and Peyton consider the implications of their kiss in the library.

Rachel invites the gang for a weekend getaway at her family's cabin. Craziness will ensue, including a game of "I Never" which will cause characters to do things they normally wouldn't, and a nasty little issue Mouth has been harboring toward Rachel will surface. Meanwhile, Karen will confront Dan about Keith's death. Could she suspect the truth?

Lucas struggles with the decision of whether he should play basketball in the wake of Keith's death while Brooke forces Rachel to deal with a dark secret. Nathan and Haley's wedding reprise is put to the test and Peyton decides to visit Pete in Chicago.

It's the weekend of the Coastal Classic, and with Lucas sidelined, Nathan has to step up on the court against an old rival who shows an interest in Haley. Brooke and Mouth plot revenge against Rachel while Dan goes head to head with Nathan's Uncle Cooper. Also, Peyton makes a life-altering decision.

On the night before Nathan and Haleys wedding, Brooke argues with Haley over the wedding dress. Meanwhile, Lucas and Karen return.

Nathan and Haley's wedding is a time of great joy. And great sadness. Peyton and Brooke fall out, Dan learns the truth about the fire, and Rachel gets publicly drunk....and publicly bitter.

The aftermath of the post-wedding car accident unfolds. Haley is deeply affected by Nathan's attempt to rescue Cooper and Rachel, Brooke confronts Lucas with her true feelings and Peyton makes a startling discovery. Pressured by the fact that someone might know he killed his brother, Dan assaults Deb.

As Nathan, Rachel and Cooper's lives remain precarious following the car accident, Brooke celebrates her 18th birthday but finds it diminished by her struggles with Peyton. Lucas and Karen come to terms with her pregnancy and with the pregnancy of someone close to Lucas, while Deb's past addictions intersect with Haley in an explosive manner.

Lucas and Brooke, now broken up, clash at a post-game party and Haley realizes that Rachel is plotting to seduce Nathan. Meanwhile, Peyton connects with her half-brother, Rachel reveals that she knows who is pregnant and Skills takes the court with the Ravens basketball team.

Peyton introduces hip-hop sensation Lupe Fiasco at Tric, while rumors that Brooke is pregnant run rampant. Still dealing with their car accident, Nathan buys a motorcycle despite Haley's reservations, and Rachel poses for Maxim magazine. Meanwhile, Lucas clashes with Derek, and Deb double-crosses Karen.

Peyton finally realizes that her brother Derek isn't her real brother but in fact the very same person that's been sending her online messages using the alias "watchmewatchyou". When she learns this and starts pushing him away, Derek breaks into her house and tries to hurt her. She is saved in the last minute by her real brother Derek and Lucas. In the end, Derek disappears after surviving a bad fall through Peyton's window.

Nathan and Haley's financial struggles force Nathan to approach Dan for help. In spite of his heart condition, Lucas decides to rejoin the Ravens, teaming him with Skills. Feeling isolated and alone, Peyton finds comfort from an unlikely source, while Brooke begins dating again, but discovers that her new boyfriend is not all that he seems to be. Mouth receives an unexpected proposal, and an old acquaintance of Dan's, Daunte, shows a sudden interest in Nathan.

Brooke has her hands full with her model for the T.A.R.T. fashion show and a new boyfriend. Rachel makes the cover of "Maxim," causing chaos at Tree Hill High. Meanwhile, Lucas learns of Nathan's dealings with Daunte, and ultimately has to choose between Nathan and his love for basketball. Haley takes on a babysitting job only to find herself in over her head and Peyton's half-brother, Derek, forces her to confront her deepest fears.

Derek convinces Peyton to take a chance with Lucas at the same time that Brooke approaches him about getting back together. Daunte's latest demand leads Nathan to seek help from an unlikely source - Dan. When Rachel learns of a failing grade, she turns to Haley for tutoring. Nathan is named MVP of the Ravens at the annual sports banquet.

As Whitey's last game approaches, the residents of Tree Hill feel the pressure of a looming State Championship. Peyton reveals to Lucas that she has feelings for him. Haley learns the sex of her baby. Nathan and Lucas clash over personal and team goals. Karen shows Deb tough love, while Dan tries to strike a bargain with Daunte.

Lucas receives an unlikely visitor -- his supposedly dead Uncle Keith. Haley's life and the life of her unborn child are threatened when she experiences serious complications with her pregnancy and Nathan wrestles with the guilt and consequences of his dealings with Daunte.

Following his heart attack, Lucas returns to school, hoping to rekindle his romance with Peyton. Haley learns that Nathan was responsible for her accident. Brooke and Rachel hatch a plan to steal the next calculus exam, while Dan faces murder charges and Deb breaks out of rehab.

With senior prom only weeks away, Haley's frustration over her injuries increases and Skills and Mouth hatch a plan to help Nathan earn money for the big dance by stripping. Brooke betrays Rachel in order to get closer to a new guy and Peyton and Lucas resolve to be happy. Struggling with her drug addiction, Deb makes a choice that could end her life.

A class assignment reveals the deepest secrets and desires of Lucas and the students at Tree Hill High. Worried about college prospects, Skills turns to Haley, while Nathan wrestles with Deb's suicide attempt. Chase learns that Brooke cheated on her calculus exam, while nudity and drugs run rampant in the halls of the school.

Haley confronts Brooke regarding the stolen calculus test. Lucas and Peyton consider taking their relationship to the next level as Peyton and Brooke grow closer. In Deb's absence, Nathan throws a senior party at the Scott House, where a sex tape from Nathan's past surfaces.

On the day of Prom, the residue of Nathan's pre-Prom party has serious repercussions for everyone in Tree Hill. Haley asks Nathan for a list of his past sexual conquests. Rachel is suspended after taking the blame for the exam she stole with Brooke. Peyton tells Lucas she wants to skip the Prom entirely, but he refuses to take no for an answer. Finally Mouth and Brooke must deal with dating Clean Teens on Prom night.

It will be an unforgettable Prom at Tree Hill High when Lucas discovers who was in the hallway when Keith was killed. Meanwhile, Peyton's decision to skip Prom leads to dire consequences. Nathan and Haley vow to be romantic teenagers at Prom, while Dan tries to win Karen's affections, as the witness to his murder closes in.

The teens of Tree Hill mount a rescue mission to retrieve Marvin from his ill-advised road trip with Rachel. While on the trip, Haley and Nathan get a second chance to enjoy the prom, and Lucas and Peyton decide to take their relationship to the next level. Brooke tells Haley that she lied about stealing the calculus exam, and Nathan struggles with the residue of a past mistake.

Peyton is scared by images of "Psycho Derek," so she decides to confront him. Meanwhile, Lucas continues seeking answers about his Uncle Keith's Murder.

Nathan and Haley grow closer in spite of the recent scandal. Brooke wonders if a spark might be rekindled with Chase. Peyton receives a tempting offer that would ultimately take her away from Tree Hill. Mouth reconnects with Gigi, while Lucas tells Karen that Dan is a murderer, setting off an explosive series of events.

As graduation day dawns in Tree Hill, some dreams begin as others end. Haley prepares for her graduation speech and her role as a young mother, while Nathan prepares for life without basketball. Brooke makes a heartfelt confession that puts her future in jeopardy. Lucas confronts Dan as Karen's life is threatened.

Dan must face the harsh consequences of his decision to murder Keith as Karen and Haley's pregnancies complicate the lives of Nathan and the graduating seniors of Tree Hill High. Lucas wrestles with his post-high school options, and Peyton and Brooke prepare to spend the summer in Los Angeles together.

As promised, Lucas, Brooke, Nathan, Haley, Peyton and their Tree Hill gang meet up after 4 years of being apart. Haley and Nathan still live in Tree Hill with their now 4 year-old son, James Lucas Scott. Nathan's dreams of being a NBA star were smashed. Peyton has just quit her job in the record industry. Brooke is living in New York. Her multi-million dollar clothing line, Clothes Over Bros, has given her a successful career in fashion design. Lucas comes back Tree Hill with his new girlfriend, Lindsay, suffering writer's block. The group rekindles to see how much their lives have changed since the simple years of high school

Nathan's depression hits rock-bottom, to the point of ignoring Jamie, so Hayley warns she may leave him. Uncle Lucas steps in as father figure when Jamie enters a go cart competition. Lucas takes the coach job for his high-school team the Ravens, assisted by Skills, but most promising player Quentin Fields is an arrogant idiot, who must be suspended due to his misbehavior in Hayley's class. Nathan nearly drowns himself but hen decides to pick himself up for Jamie's sake. Brooke decides to invest in a record label for house-mate Peyton to run. Nathan and Hayley hire a foxy nanny.

Haley tries to encourage a student, who is a troublemaker, to join the Ravens. Nathan goes and vists Dan in prison, without Lucas aware. Brooke is edgy after her manager, tracks her down in Tree Hill. Peyton finds new talent for the reopening of Tric, with the help of Haley. Lucas lets Peyton be the manager of Tric. Linsday, Lucas's girlfriend is worried after meeting Brooke and Peyton.

Brooke buys Karens Cafe, and turns it into a Clothes Over Bro's boutique. Everyone goes to the opening of the store, including Brooke's Manager mother, who has seemed to track her down. Lucas and Peyton cause friction at the opening.

In a flashback of three years into the past, an event between Lucas and Peyton changes their relationship forever. Brooke has to decide about the fate of her fashion line since Victoria is putting pressure on her. Whitey has doubts about Nathan as he has a sudden temper problem before a championship game because of Haley who is trying to find the balance between her school and motherhood.

Nurse Carrie isn't just an ideal playmate for Jamie, who has nightmares since Skillz told him too much about Dan. Her charms should make Haley jealous, but she doesn't realize yet that Carrie really lusts for the hunky husband. Mouth is deputized by the night-shift to ask for better working conditions from their boss Alice; he actually may earn a TV reporter spot as her "play thing". Peyton clashes instantly with Brooke's bossy mother, Victoria, who scares her new label's only star, Mia, and calls Brooke too dumb to run the fashion business herself. Lucas considers proposing to Lindsay and won't accept Peyton's claim that he 'gave up on their true love' during or after his 'ambush proposal'.

It's a Tree Hill reunion as the entire gang gathers at Tric to see musical group The Honorary Title perform. Victoria turns up at the club which infuriates Brooke. Meanwhile, Brooke sets up her assistant Millicent with Mouth but Alice ruins the set-up for him by threatening to have him fired if he kisses Millicent. Peyton arranges for Mia to sing at Tric and Lucas proposes to Lindsay which stuns Peyton.

Lucas proposes to Lindsey and Peyton is the first one to know the news. Haley is upset at Lucas and Peyton for witnessing their kiss before he proposed to Lindsey. Next day Lindsey shows her ring to Haley and Brooke. Mouth finds out that Alice has been fired for sleeping with an unnamed employee and continues to pursue Millicent and finally wins her over when they watch a televised ballet recital. Carrie continues in the pursuit of Nathan and Brooke is intrigued by Owen and wants to get to know him better but cannot understand why he doesn't respond to the instant Brooke charm.

It's the first game of the season and it's Mouth's big chance to impress with his coverage of the game. Meanwhile, Haley, Brooke, Peyton, Lindsey and Mia get locked in the Tree Hill High library and a lot gets said particularly between Lindsey and Peyton. Elsewhere, Nathan and Lucas endeavor to tell both Haley and Lindsey about their indiscretions.

Brooke invites Tric bartender Owen to come and see her business in New York but finds model Rachel, a friend from her past, in her apartment having taken an overdose. With Owen's help they manage to persuade her to enter a treatment program. Nathan and Lucas attend Dan's parole hearing while they try to protect Jamie from him. Mia gets an offer from Peyton's former employer. Elsewhere, Haley and Nathan's marriage is on the rocks as Carrie does her damnedest to split them up leading. Jamie falls into the pool.

Missing Nathan gives Jamie nightmares about Dan, who is indeed paroled. Lucas and Lindsay decide to 'coincidentally' have separate stag and hen nights at the same place, so Nathan and Haley are bound to meet. Brooke arranges a hot blind date for Peyton, but the joke is on her as Owen's chosen mate is Chase, Brooke's former 'clean teen' lover. Jamie's tireless efforts to get his mom and dad to make up In turn make Haley realize she shouldn't have tried to change Nathan. Ruthless business adviser and absent mother Victoria pushes Rachel out, to Brooke's disgust.

Lindsay's big day, the wedding to Lucas, has finally arrived. The old gang reunites, remembering their own loves and/or marriages, even Karen and Andy from New Zealand. Haley still isn't ready to let Nathan back. At the altar Lindsay finally realizes the Comet in Lucas' book refers to Peyton's car and their first love, and runs out. Crazy Carrie kidnaps Jamie, pretending she was rehired as his nanny. Because Haley saw Dan and refused him entry, Nathan sends the police look for his dad. In fact Dan followed Carrie and finds his grandson.

Brooke is visited by an adoption agency and has an interview to find out if she would be a suitable mother. Lucas flies out to see Lindsey who says she will edit his novel. Dan gets Jamie back and bonds with him at School. Nathan and Haley have a good counseling session and decide to take up their hobbies of basketball and music again. Peyton is visited by Max and still has feelings for Lucas.

The marriage counselor's advice to reconnect with personal aspirations is followed to the letter. Haley is happy to re-enter the music field; Peyton is to sign her up for a record. Haley can't find an appropriate nanny, apart from Nathan's mother Deb. Nathan's come-back in basketball is harder to get going as the team's stupid star Q is rude and hostile. Only Jamie get's on with Dan, the brothers warn him to keep his distance. Brooke is ecstatic to be 'getting a baby', so she stocks up on toys etc.

Lindsey returns to Tree Hill for Jamie's fifth birthday party, giving Lucas hope for their relationship. Brooke and Peyton prepare for life with a new baby. Meanwhile, Dan tries to insinuate himself back into the lives of his family, ultimately divulging a grave secret to Nathan and Haley.

Lucas confronts Dan's announcement about his life expectancy of only 6 months without a heart transplant. He calls Dan a liar until the cardiologist confirms it. Nathan wrestles with his feelings, and Jamie's burning desire to get acquainted with his 'cool' grandfather, while Dan begs for a last chance to repair his shattered family. Nathan and Jamie come up with a daring alternative for the injured Ravens. Mouth suddenly gets a triple break as sports presenter.

Dan finds out he is second in line to receive a heart...and the Reverend is first. Peyton gives Mia the details of her next tour. Lucas tells Peyton he hates her.

Brooke has to deal with giving up her baby Angie. Haley's career takes a turn for the better and Peyton is visited by somebody from her past. Meanwhile, Dan awaits a new heart as Lucas makes a decision on who he wants to be with. Elsewhere Mouth makes the decision to move to Omaha when Millicent agrees to go with him.

The girl of Lucas' dreams shows up at the airport. Nathan's comeback is halted by news that could change his career, while Dan's life hangs in the balance. Marvin and Millicent wrestle with leaving Tree Hill, as Brooke and Victoria's battle over Clothes Over Bros comes to a surprising head.

After Lucas and his Peyton enjoy planning their dream wedding, Brooke and Peyton reconnect. Nathan works with Quentin on his basketball skills, but Haley is worried for Nathan's well-being and reeling from a threat to her store, Brooke reaches out to an unexpected ally. Jamie catches Antwon and Deb kissing.

Lucas returns from Las Vegas and learns of the tragic death of Quentin Fields, as Nathan and Haley struggle to find a way to help Jamie understand the death of Quentin who was a close friend of theirs. Lucas, Skills, Nathan, Haley, and Peyton go to visit Quentin's mom and give their sympathies. Jamie meets Quentin's brother, Andre.

Knowing about his mother's affair with Skills, Nathan tells her to leave, but finds Jamie and his granny miss each-other. Of all people she happens to tell crazy Carrie. Jamie's insistence to visit grandpa Dan brings Haley to discover his disappearance and investigates. Brooke seeks counseling now that her mother has stolen her fashion company, then goes to confront her, armed. The shoplifter is in Haley's class. Peyton is delighted to work and spend time with singer Mick Wolf, who also knew her late mother and biological father.

Nathan thinks it's a godsend to be invited for a job interview by manager Bobby Irons of the NBA D-league team Fort Wayne, until he hears it's for a coaching job. Haley finally grants Jamie a last chance to say dying grandpa Dan goodbye, but it's a dangerous set-up by crazy nanny Carrie, which only lush granny-nanny Debby works out. An incompatible date in a promotion tour for his book forces Lucas to tell Lindsay he's about to marry Peyton.

Lucas is joined by a familiar face on his book tour; Nathan questions his health when he is given an opportunity to play basketball again.

Nathan and Haley must parent Jamie in the face of a school bully, while Lucas and Peyton adjust to life as a live-in couple. Brooke finds being a role model not as easy as she expected, and Marvin gets his old job back. Marvin is surprised to find out that his new intern is someone from his past.

Lucas' novel receives unexpected and surprising interest, as does Marvin from his new intern. Jamie grows enamored of Sam and her rebellious facade, while a would-be suitor grows enamored of Brooke. Meanwhile, Haley counsels Nathan as his basketball comeback gains momentum.

Jamie and Haley really worry that Nathan might being injured at Slam Ball, although he scores well and Owen protects him even against the most feared adversaries. Brooke is so stressed out by Sam's misbehavior that Owen's efforts to win her back, exposing himself only to get overexposed cruelly, seem wasted. Lucas agonizes over whether and how to write the key script scene Julian demands, Keith's death. Peyton puts off telling him about her LA affair too long.

Nathan wrestles with his former self as to whether to give up basketball to be a family-man only or pursue his dream, as he encourages Haley to do at a USO concert for Marines. Lucas punches Julian in the face but must reconsidering collaborating on the movie he already sold the rights to. Monogamous virgin Millicent is made absurdly jealous by teaser Gigi.

In a very special episode, Chad Michael Murray pens an homage to the classic films of the 1940s. Karen's Cafe is transformed into a glamorous nightclub with Lucas as its proprietor, Nathan as the bartender and Haley as the nightclub's resident singer.

As Lucas takes a trip to Hollywood to meet his film director, Nathan gets a pro basketball try-out. Peyton struggles with Mia to focus on her follow-up album, while Millicent confronts Marvin about Gigi. Julian approaches a dubious Brooke about designing clothes for his movie, and Haley takes a reluctant Jamie to his school talent show.

Peyton shares shocking news with Lucas who is still in LA with Dixon and Julian. Nathan struggles to adjust to his new career and Brooke desperately searches for Sam.

As news of Peyton's condition spreads, Marvin and Millicent struggle to remain a couple and Brooke tries to suss out Julian's intentions. Peyton and Lucas babysit Jamie and his friend, while Haley and Nathan spend a night out together with Chase and Mia.

Nathan is on the bench during five losses, but has more maturity, team spirit and insight than the arrogant, selfish star scorer. He feels this is bound to pay off, as Dan predicts. After refusing six top directors, Lucas and Julian get an ultimatum from his father, Paul. He also tells Peyton that the infidelity she dumped Julian for was his publicity stunt. Julian is incredible patient with Brooke's insecurity. Chase is Mia's ideal playmate, inspiring a new single.

Lucas wrestles with casting for his movie while Peyton tries to prepare for their future. Dan advises Jamie on a school crush. Brooke meets the actress who will play her while Nathan gets exciting news, and Haley has to make a tough decision at school.

Nathan can't be home on his wedding anniversary, so Haley comes to Charleston to arrange a romantic dinner in a run-down but charming townhouse. She proposes to move there so they can be together more, he generously suggests she starts touring again. Understanding lover Julian tries the L-word on Brooke, but that's still too soon. Meanwhile Jamie has a dinner guest which surprises nanny granny: grandpa Dan. Parenting memories first bring the exes together, then open up bitter wounds, how both are guilty of Keith's death. After Peyton's near-miscarriage, Lucas wants to save her, but she's determined to have their baby at any cost.

Julian's dad is fired as studio boss, his projects therefore in doubt. Director Reese Dixon worries about saving pay and perks, masterly. Dan's heart finally arrives, but is lost in a doggish accident. Jamie demands the truth about Keith, but stays loyal. Sam sees Jack commit shoplifting and takes both loot and blame. Julian learns the truth and must decide whether to leave Tree Hill and Brooke. Haley may return as teacher if she publicly withdraws her support for Sam's article. She leaves to join Peyton's label as Mia's producer.

Julian offers Brooke tickets to move to L.A. with him and Sam. However, she keeps doubting and whining that she can't uproot Sam, although she's willing. Even Chase warns her not to waste such an opportunity. When Jamie asks about Keith, Nathan and Lucas take him to his auto-shop. Jack braves suspension to make all Haley's class walk out of Brumkin's boring English class. Even a college dorm PJ party can't console love-sick Mouth.

Nathan and Haley are considering a better school for genius Jamie, but doubt that academic excellence outweighs posh elitism and absence of sports. Nathan is expected to step up as leader - by coaching his ingrate rival Nino. Peyton has a car accident, which wrecks Lucas' Comet on wheels. Sam's boyfriend has found cool foster parents, and must leave Victoria expects Brooke to help save the company she stole, if not out of family loyalty then for the employees.

Nathan is offered a two year pro contract, but in Europe. He agonizes whether he should take it, as Bobby suggests, or stick to his NBA dream, as Haley advices. Jamie not only does well at his first school dance, he is the one who counsels 'babsitter' Skills to date his teacher there. While Peyton grumbles bedridden, Lucas repairs the Comet as a surprise, while both reminisce. Chase must convince Mia his affair with Brooke was and could only happen before them. Haley enjoys working with Nick Lackey, who wants her to produce music.

Warned by manager Bobby there's an NBA scout, Nathan and his protégé Nino perform excellently, then wait for a call. Lucas opposes Peyton preparing a 'posthumous' time-capsule and ask for a rushed marriage on account of her pregnancy risk. Nathan makes him reconsider and drops off Jamie with 'his uncle Keith'. Brook, Sam and Victoria are too busy to concentrate on Peyton's baby-shower or business. They are preoccupied as to whether Sam should be encouraged to spend time with birth mother Rebecca.

Peyton and Lucas' wedding day has finally arrived and surprise guests attend. Haley plays an unexpected role in the ceremony while Nathan hopes to be called up to the NBA. Antwon keeps Jamie on a short leash, and Brooke does the same with Nick Lachey.

Nathan gets some news about his future on the Chiefs. Peyton gives birth to hers and Lucas' baby daughter, Sawyer, and receive a surprise visit from Karen. Dan is on death's door, while Brooke and Victoria prepare to re-launch Clothes Over Bros.

The tree hill gang must learn that to live an exceptional life doesn't end once you've achieved your goals. With Lucas and Peyton gone, Nathan's a year into his NBA career, Haley has taken over Red Bedroom Records, and has to deal with the return of her free-spirited 26 year-old sister, Quinn. Brooke is still happy with Julian.

Brooke looks for a model as the new face of Clothes Over Bros. Mia and Haley fall short of selling a million records. Dan finds a confidant in an unlikely person. Nathan deals with being distant from the ones he loves, while Clayton reminds him he's in the NBA. Tree Hill's former bad girl - Rachel Gatina returns.

Nathan and Haley have to decide what to do about Renee's pregnancy claims as Clay thinks paying her off is the best way as it is Nathan's contract year. Mouth is asked by his station manager to investigate any titillating scandal about Nathan but decides not to tell his boss about the alleged pregnancy. Mouth and Skills come to an agreement about living together and Alex tests the patience of Millicent during a photo-shoot. Later she gives Julian a film script. Meanwhile, Quinn's husband David comes to find her when she won't answer his calls.

A disgruntled Renee makes her pregnancy known in the national media. Quinn tells David that she wants a divorce and spends the night with Clay. Mouth quits his job at the station after he is forced to report on the scandal surrounding Nathan. Brooke's fashion show is a huge success but Victoria warns her about Alex and Alex's obvious designs on Julian.

Renee presses charges and has Haley arrested and thrown in Jail. Clay and Quinn grow close much to Nathan's distaste. Elsewhere, after a false start Julian and Alex begin to work on her script.

Julian gives Alex another chance and they continue to work on her script which he believes is very good but Brooke is not happy. Brooke reconnects with Chase to make Julian jealous and it works. Mouth gets to tell the truth on air about the allegations against Nathan much to his station manager's horror. Milicent begins to take weight loss tablets after Alex tells her she is a plus-size model. Elsewhere, Haley offers to pay off Renee unknown to her that Rachel and Dan have got to her first.

Dan and Rachel bring Renee onto his chat show. But does Dan have a few tricks up his sleeve? Meanwhile, Clay and Quinn reflect over their past loves - Clay and his late wife Sarah and Quinn and her earlier life with David.

Nathan, Julian, Mouth, Skills, James and Chuck go camping. Back in Tree Hill, Haley, Brooke and Quinn enjoy some "special" brownies. Meanwhile, Clayton continues to deal with his mourning issues and Dan has nightmares about a dying boy.

Haley returns to the stage much to Miranda's annoyance but the gig turns out to be a success and changes Miranda's attitude somewhat. Brooke believes she might be pregnant but is conflicted on how Julian will take the news - but the test proves negative. Julian finishes the script with Alex and heads out to be with Brooke at Haley's gig but gets a call from Alex telling him she's close to taking cocaine again so he goes to her much to Brooke's annoyance. Rachel and Dan arrive back in Tree Hill but his hoped reconciliation with Nathan doesn't materialize. But Dan isn't going anywhere. Mouth meets Rachel and tells her to try and reconcile her differences with Brooke but Brooke isn't having it. Mouth and Brooke are both concerned and angry with Millicent who's desperation to be liked by the public is putting her in a downward spiral. Elsewhere, Clay's hardball tactics with the Charlotte Bobcats and Nathan's contract fail when they sign another player to fill Nathan's spot. What will Nathan do now?

After losing his place on the Charlotte Bobcats Nathan reaches breaking point with Clay and fires him but this ends up causing a rift between Haley and Quinn with Quinn moving out to a hotel. Dan takes it badly that Clay messed up and tries to teach him a lesson by nearly drowning him in the surf. Later Clay is fired by his boss for stuffing up Nathan's contract. Victoria arrives unannounced and takes a liking to new TRIC bar manager Grubbs. Meanwhile, Brooke tells Julian that it is doubtful that she will ever be able to get pregnant and he promises to get different opinions and they will work it out. Elsewhere, Millicent's increased drug taking alarms Mouth and her model like tendencies and demands disgust Brooke. It prompts Victoria to call the police when she sees Millicent driving drunk. Millicent calls Brooke from jail but Brooke tells her she cannot help her.

Victoria bails Millicent out of jail the morning after her arrest and tells her to get herself together before she shows herself again. But Victoria is doubtful that Millicent has learned her lesson and proceeds to keep an eye on her and she is proved correct when Millicent steals a dress from Brooke's new collection to give to her model friend Makenna is exchange for a packet of blow. Mouth is distraught at the change in Millicent and they break up. Clay tries in vain to hold onto his one client but it is not to be and so he packs up his apartment much to Quinn's dismay. Nathan is told by his agents that he won't play NBA this season and his only option is to play in Spain and be ready for the next season but this move coincides with Haley's planned record tour of the US. Skills records a video with the help of Jamie for a new job in L.A. Elsewhere, Julian mistakenly tells Alex that Brooke cannot have children which further deepens the rift between Brooke and Julian after Alex tries in her own way to help Brooke. Despondent after being told to stay away from Julian Alex slits her wrists in the bath and leaves Julian a voice-mail telling him she won't bother him anymore.

Clay gets his mojo back with some help from Quinn and which might mean that Nathan can stay in the US and play in the NBA with the his old team the Charlotte Bobcats instead of going to Spain. Skills gets offered and takes the job in Los Angeles and brings Mouth along for the ride. Dan goes against Rachel on his television show and tells his audience that this is his last show and also serves with divorce papers. Julian rescues Alex from her near suicide bid and tells her the film deal is back on. Brooke fires Millicent from her model contract and tells her to get immediate help for her drug problem but her stay in rehab is brief. Victoria hires a new designer, Alexander Coin, for the menswear collection without telling Brooke.

Nathan and Jamie join Haley on tour as it comes to a close. Quinn gets her divorce from David. Millicent appears in court for her DUI where Victoria offers her a job as her assistant at Clothes over Bros. Brooke finds it hard to trust Julian particularly when Alex is always by his side and ends up turning to new menswear designer Alexander Coin. Elsewhere, Haley and Quinn's sister Taylor turns up in Tree Hill with Quinn's ex-husband David who is now her boyfriend. Meanwhile, Mouth returns from L.A.

Nathan tries to calm Haley down after Taylor and David's shock announcement that they are a couple and then through the ensuing dinner that Taylor plans out until all three James sisters find themselves in the pool fighting it out. David and Quinn talk and he agrees with her that their marriage is at an end. Julian takes offense to the director hired for his new film and fires him after he punches him for insulting Alex. Finally after talking to Brooke rationally and asking her to be the movie's costume designer she makes him see that he should direct the movie himself which he brings up with his father who agrees. Mouth and Lauren fix up the disheveled apartment after Millicent's recent partying and then tells Millicent he is staying in Tree Hill. Millicent and Brooke agree to try and be friends again.

Flashback to the '80s.

Haley, Quinn and Taylor receive a surprise visit from their mom Lydia who tells them that she has incurable pancreatic cancer and that she is not seeking any further treatment. Quinn takes the news very hard but Clay is there to support her. Meanwhile, Alex sets her sights on Alexander as Brooke and Julian try to get their old relationship back on track, and Millicent finds herself struggling with temptation.

Haley and Quinn refuse to accept that their mom Lydia will not fight her pancreatic cancer and after some convincing manages to persuade her mother to get a second opinion with Nathan's doctor but the results don't bring any change. Because she told Jamie that she won't be alive for Christmas he organizes for her to have Christmas now with the family. Meanwhile, Brooke and Julian's relationship moves up a notch but comes crashing down spectacularly when Brooke finds Alex in his bed but is it what it seems? Elsewhere, Grubbs puts Miranda through hoops before he allows her to produce his album with her and Owen Morello comes back into Millie's life much to Mouth's displeasure.

In getting back at Julian for sleeping with Alex, Brooke messes with the costumes for the shoot and generally does her best to wound Julian but it takes comments from Alex to get her thrown off the set after she punches Alex in the face. Only later does she discover that it was Alexander that Alex slept with as she switched rooms with Julian. She tells Victoria who is furious and it later transpires that her mystery lover is Alexander. Meanwhile, Lydia takes ill from her cancer and is hospitalized and reaches out to the daughter Taylor but it is Quinn who manages to get her to come before she dies. Elsewhere, Clay tells Katie he won't be representing her but it doesn't put off Katie and she finds out that he was married to Sara so she transforms herself to look like her. Lauren and Mouth nearly get it together only for Skills to come back to Tree Hill.

Quinn's gallery opens with Clay very supportive unaware that he is being stalked by Sara lookalike Katie until she makes her presence known and Clay shows Quinn how alike Katie is to Sara. Josh's sex tape with Alex is emailed to Julian's father with a demand for $1,000,000 putting the film in jeopardy. Miranda finds out she is being deported thus putting a spanner in the works with Grubbs's recording but Grubbs finds a way around it by proposing to her. Lauren tells Skills that she has fallen for someone else but he is unaware it is his best friend Mouth until he sees a photo of them at the gallery where he promptly punches Mouth. Meanwhile, Victoria's affair with Alexander is exposed in more than one way. Elsewhere, Nathan and Jamie spend a guys evening together & later he asks Haley if she'd be ready to try for another baby. She tells him she took a pregnancy test and it was negative but is she telling him the whole story?

Nathan and Haley struggle with the aftermath of her mother's death, while Brooke deals with the fallout of Alexander's tryst with Victoria. Alex discovers a secret about her leading man, Josh, that could derail Julian's film, and Quinn is confronted by an unhinged Katie.

Quinn takes Jamie on a treasure hunt as an increasingly despondent Haley further withdraws from both Nathan and Jamie. Katie invades Clay's personal space convinced that she is his dead wife Sara. Clay plays along until he manages to have her committed. Mia breaks up with Chase by text and then comes back to Tree Hill to manage a heart-broken Grubbs after Miranda leaves. Julian shows his film to a delighted Brooke as he anxiously awaits confirmation on whether his indie film will be bought by a film festival.

Haley tries to overcome her depression by joining Nathan, Jamie and the rest of the Tree Hill gang on a trip to Utah for the premiere of Julian's film.

As the gang returns from Utah, Brooke and Julian are engaged, Haley learns that she is pregnant, Nathan must leave for training camp, and Clay and Quinn are assaulted and shot by Katie.

Clay and Quinn discover they've been shot, and as they fight to live, Nathan and Haley struggle with the situation. Meanwhile, Julian tries to preoccupy Jamie, and Brooke's legal troubles mount.

As the situation at the hospital worsens; Nathan makes a huge decision regarding his career. Brooke and Julian take Jamie for the day, while Victoria and Millicent hatch a plan.

As Brooke deals with the mounting financial troubles at Clothes Over Bro's, Nathan and Haley come to a conclusion regarding Nathan's career. Meanwhile, Julian begins a new film project, while Alex and Chase spend the afternoon together.

As Clay is discharged from the hospital, Nathan contemplates walking away from the NBA. Meanwhile, Brooke and Victoria disagree on how to handle the company's financial problems, and Chase discovers a secret about Alex.

As Halloween approaches in Tree Hill, Brooke and Julian get an unexpected visitor, and Nathan begins a new career. Meanwhile, Clay and Quinn struggle with life back at the beach house, and Haley and Mia host an open mic night at Tric.

Nathan is furious when his first mission as Clay's junior agent seems to go wrong because of his lack of jargon knowledge, but he actually lands the football client. Julian accepts Alex's suggestion to assemble all potential best men for a friendly poker night, but the mood is murderous. Chase gets abused by everyone. It's Brooke's turn to be bullied by Julian's bossy ma who pushes for a traditional wedding at a brides fair, where Haley - blaming pregnancy hormones - sides with the enemy every time.

Clay finally gets some hand muscle control back. As he predicted, Nathan had no reason to be gloomy about his first contract, football talent Troy, which is signed to all parties' satisfaction. Julian and Brooke stand up to his mother, who has to back down on the fancy wedding plans but relapses into drinking. After some occupational therapy for Mouth and himself, Chase handles his Alex-Mia-dilemma. In Nathan's absence, Jamie finds it even harder to face the peril of peer ridicule for getting braces, which Haley only compounds by wearing a 'commiserative' eye-patch.

The gang gathers at Nathan and Haley's to spend Thanksgiving with friends and family.

Nathan goes back to college and opts to take a harder class but he doesn't get a very welcome reception from his college professor and so with Jamie's help they figure out a way for Nathan to do better at college. Haley and Mia book Erin as warm-up act to Kid Cudi at Tric with both Mia and Alex acting as competing bar staff. Elsewhere, Quinn looks up Dan Scott and enlists his help to kill Katie Ryan but he manages to talk her out of it but she may regret her decision as Katie heads back to Tree Hill. Julian finds a list belonging to Brooke of things she's always wanted to do but never got around to so he sets about making them all come through so that she gets her lost inspiration back.

A storm strikes Tree Hill, putting everyone's life in danger.

After a wild night out on the town for her bachelorette party, Brooke and the girls try to piece together the night before amidst the wreckage of the day after.

The biggest day of Brooke Davis' life has arrived, her wedding day. Julian gets his parents to agree to a truce on their special day, but will they uphold their end? Brooke makes up with her mom, and when her dad fails to turn up, her mom walks her down the aisle. Nathan's advice of sincerity helps inspire Julian's 'best man' Jamie to make a brilliantly simple speech. Chase disagrees with Skills' absurd security-obsessed job description for them as ushers. He ends up making hotter use of the limousine.

Brooke, Quinn and Haley decide to use their talents for the greater good. Meanwhile, Julian takes on a directing job and helps out a friend, and Chase mentors Chuck.

Sex games, secrets and shoelaces all come into play as the couples of Tree Hill celebrate Valentine's Day.

As the girls plan a surprise baby shower for Haley, the guys participate in try-outs for Jamie's baseball team. Meanwhile, Brooke and Julian pursue adoption, while Mouth gets Millicent ready for her first day at work.

As Haley's due date approaches, she takes steps to ensure that all her friends and family will be ready when the time comes. Brooke and Julian also prepare to begin a family, while Chuck turns to Chase for help with a problem.

The big day has finally arrived and the gang gathers at the hospital to await the birth of Haley and Nathan's baby. While they wait, they reminisce about the memories they have shared over the years.

While Haley stays at home to take care of the new baby, Quinn organizes a concert at Tric. Meanwhile, Brooke gets an offer to return to Clothes Over Bros, and Nathan sets his sights on exposing Professor Kellerman.

As Nathan, Julian and Clay coach Jamie's first little league game, the situation regarding the accident comes to a head. Meanwhile, Chase asks Alex to take a drug test for him, and Quinn gets an offer to shoot in Puerto Rico.

Nathan, Jamie, Clay, Julian, Chase and Chuck have a camp-out on the Rivercourt. Meanwhile, Brooke, Quinn, Alex and Lauren take a trip to Puerto Rico.

Haley and Brooke get ready to re-open Karen's Café as Brooke's pregnancy progresses. At her scan she discovers that she is expecting twins. Nathan and Clay set off on the road to scout new talent and it forces Nathan to finally go and see Dan. Chase leaves for the Air Force leaving behind two disappointed people - Chuck and Alex. Meanwhile, Mouth and Millie start their new morning show together but Millie is wooed away to start a new show with another co-anchor in Charlotte.

Before tired Nathan can finally rejoin his longing family, Dan has turned up and secured himself a temporary stay on account of his burnt-down restaurant, where he lived, but may have torched it. Chase is happy but exhausted on account of running the bar and an intense sex life with Alex. As if nocturnal baby care exhaustion wasn't bad enough for Julian and Brooke, his studio project only seems to bring debt and her boys fashion label fails to get financed, but her father Ted Davis actually turns up for the twins' christening. Clay's exhaustion is diagnosed medically serious. Chris Keller got engaged by Haley's music label under an alias, immediately antagonizes Alex but proves himself an genius producer.

Chase confides only in Chuck his plan to move Alex's things into his place. They ignore Chris Keller made her an offer for a career-boosting, national tour. As even the psychiatrist Clayton grudgingly consults can't properly diagnose his problems, Nathan decides with support from Jamie and Haley to attend in his pace the European forum for international sports talent scouting. This allows Dan to prolong his stay and carry out a mysterious plan. Julian warns Brooke that Victoria tries trough him to sabotage her father's apparently business-wise sound project to co-found a male fashion label.

Chase is heartbroken after Alex's desertion to take the tour Chris Keller advised, yet overcomes his bitterness toward Keller, who pleads her artist temperament was a lost case from the start. Julian is near despair about the unused studio until a TV series project comes within reach. Alas coaxing the studio proves tragically incompatible with paternal duties, while Brooke charms investors for her boys fashion project with her father. Clayton's problem is worse then thought, as Quinn discovers spying on him. Haley now runs Karen's café, but her cook is sick, so Dan steps in but that costs some bigot customers, and a mystery competitor opens across the street.

Julian is even more shattered than Brooke, who gives him the silent treatment, over having forgotten baby son Davis in his car. Although the boy is alright, Brooke leaves with the twins until Haley talks sense into her. Drunk, Chase enjoyed a wild night with a shameless flirtster but shyly wriggles out of continuation in the morning, on account of Alex's memory, only to find her with Chris Keller the next day. Dan and Jamie enjoy camping but dreaded Nathan's return is likely to mean grandpa's exit. After Dan scares away Clay's dealer, he comes clean to Quinn and consults Dr. Alvarez, who promises recovery but only after residential therapy.

Chase bravely bares Chuck's absurd, imitative adoration for 'cool', actually neglectful Chris Keller and stands by the ingrate knave when his father Wade Scolnic finally visits, but discards Chase as if a random babysitter. Nathan is missing since his flight home from Europe days ago. After cocky Keller helps activating Tree Hill PD officer Stevens, Haley finds Dan's cash stash and suspects a horrible crime. Julian can't forgive himself even now his loved-ones do, blames himself for bullying by strangers and picks a bar-brawl to get a 'bloody good' beating. Pushed by Dan and Quinn, Clay checks in for residential therapy with Dr. Alvarez, keeps dismissing 'mere talk' as therapy, but decides against signing out after meeting shy Logan, a neglected orphan boy who hangs around the rehab clinic.

Dan enlists Julian to help in his search for Nathan. Mouth fills Clay in about Nathan, as Haley explains Nathan's disappearance to Jamie. Brooke gets an idea of how to bring patrons to an empty Karen's Café, and Chris Keller confronts Chase about Tara.

Haley seeks help from Lucas as Nathan makes an escape attempt. Brooke comes face-to-face with Xavier. Julian uncovers evidence that assists Dan in his search for Nathan. Clay makes a connection with another patient.

Haley receives news of a possible tragedy. Dan's search for Nathan leads him back to his dark past. Clay has a breakthrough in his treatment. Brooke and Julian deal with Xavier. Chase's concern for Chuck pushes him to his limits.

Brooke and Julian take new measures to protect their family. Skills helps Mouth get to a turning point, and Chase faces consequences for defending Chuck. Clay reaches a new understanding with Logan.

Dan, Julian and Chris Keller attempt to rescue Nathan. Brooke's conflict with Xavier escalates. Quinn and Clay revisit the past.

Nathan's practically safe return causes general joy. The only downside is Dan's condition, probably terminal, but the whole family is in a forgiving mood while reminiscing, only Lucas refuses to come. Julian is welcomed as a hero and hears Brooke survived Xavier's attack, then stands by her as a paternal visit proves too good to be truly non-business. Clay goes to Sara's parents, who have raised Logan, and gets them to agree to let his son be invited home with him and Quinn.

Julian finally sells his One Tree Hill series concept to a studio and is hired to complete the script. Clayton and Quinn, who welcomes Sara's memory to, patiently win Logan's trust to become a warm; close family. Chase gets over his confidence crisis as bar manager just before he's offered a chance to buy Tric from Karen on the boat burning day. After Julian scolds father-in-law a useless father and Brooke 'surprises' her divorced parents back in bed, an unexpected business move makes up for a lot.

In the final chapter of One Tree Hill, the tenth anniversary of Tric brings old faces and new possibilities for the Tree Hill family. To celebrate the 10th anniversary they host a concert at Tric that includes Gavin Degraw. Julian buys Brooke's childhood home for them to live in. Nathan and Haley celebrate their 10th wedding anniversary.

As Haley's due date approaches, she takes steps to ensure that all her friends and family will be ready when the time comes. Brooke and Julian also prepare to begin a family, while Chuck turns to Chase for help with a problem.

Nathan tries to calm Haley down after Taylor and David's shock announcement that they are a couple and then through the ensuing dinner that Taylor plans out until all three James sisters find themselves in the pool fighting it out. David and Quinn talk and he agrees with her that their marriage is at an end. Julian takes offense to the director hired for his new film and fires him after he punches him for insulting Alex. Finally after talking to Brooke rationally and asking her to be the movie's costume designer she makes him see that he should direct the movie himself which he brings up with his father who agrees. Mouth and Lauren fix up the disheveled apartment after Millicent's recent partying and then tells Millicent he is staying in Tree Hill. Millicent and Brooke agree to try and be friends again.

As graduation day dawns in Tree Hill, some dreams begin as others end. Haley prepares for her graduation speech and her role as a young mother, while Nathan prepares for life without basketball. Brooke makes a heartfelt confession that puts her future in jeopardy. Lucas confronts Dan as Karen's life is threatened.

Felix continues to be Brooke's sex-toy. Chris makes Peyton beg for him to perform at the Tric club opening and hands her a 'rider' (list of demands), which inspires Brooke- about non-committal rules for Felix. Dan tells startled Karen he forgave Keith for sleeping with Deb, news to her. Keith asks Jules to the opening, they become exclusive. Coach, in hospital, understands Nathan gives up Highflyers for Haley's sake; seeing the crowd gives her major stage-fright, but when Chris leaves the stage because the teenage crowd won't listen quietly she plays, to applause, then he invites her to collaborate musically. Mouth hoped to get a shot at Brooke, but she commends him as a- sweet little brother, ouch; he accuses Felix, Lucas gets it backward and catches a solid punch, mainly for dating Theresa; Craig throws Felix out, Mouth brings drunk Brooke home, who only wakes up when Felix is beside her.

With the assistance of Peyton and Brooke, Lucas throws Nathan and Haley a wedding reception. Although Haley's parents support Nathan and Haley's marriage, Deb has a difficult time accepting it. Meanwhile, Dan's recent heart attack causes him to try and mend his relationships with Deb and Lucas.

A disgruntled Renee makes her pregnancy known in the national media. Quinn tells David that she wants a divorce and spends the night with Clay. Mouth quits his job at the station after he is forced to report on the scandal surrounding Nathan. Brooke's fashion show is a huge success but Victoria warns her about Alex and Alex's obvious designs on Julian.

Brooke and Julian take new measures to protect their family. Skills helps Mouth get to a turning point, and Chase faces consequences for defending Chuck. Clay reaches a new understanding with Logan.

Julian is even more shattered than Brooke, who gives him the silent treatment, over having forgotten baby son Davis in his car. Although the boy is alright, Brooke leaves with the twins until Haley talks sense into her. Drunk, Chase enjoyed a wild night with a shameless flirtster but shyly wriggles out of continuation in the morning, on account of Alex's memory, only to find her with Chris Keller the next day. Dan and Jamie enjoy camping but dreaded Nathan's return is likely to mean grandpa's exit. After Dan scares away Clay's dealer, he comes clean to Quinn and consults Dr. Alvarez, who promises recovery but only after residential therapy.

In therapy with Deb, who by now wants a divorce, Dan tells he cut Lucas out of his life like a trapped man amputates his arm to survive. Haley gets basketball lessons (to pass PE) from patient Nathan, who to everyone's relief is back with the Ravens. Coach tells Keith he promised his wife 35 years ago they would 'start living' after 20 years of coaching; he just won 500 matches, but what about his most important intention: to make a difference? Strolling on the beach Dan meets Carrie, who fails to seduce him when invited to eat his spare steak as Nathan declined, but just then Deb walks in. Now Brooke believes Lucas is her first true love, he and Peyton don't come clean about the motel; but Haley overhears them and has a row with him. Nathan convinces coach he does matter for boys like him who still need guidance. While driving with Lucas, Keith is hit by another car. Dan is nearby and rushes Lucas to the hospital.

In getting back at Julian for sleeping with Alex, Brooke messes with the costumes for the shoot and generally does her best to wound Julian but it takes comments from Alex to get her thrown off the set after she punches Alex in the face. Only later does she discover that it was Alexander that Alex slept with as she switched rooms with Julian. She tells Victoria who is furious and it later transpires that her mystery lover is Alexander. Meanwhile, Lydia takes ill from her cancer and is hospitalized and reaches out to the daughter Taylor but it is Quinn who manages to get her to come before she dies. Elsewhere, Clay tells Katie he won't be representing her but it doesn't put off Katie and she finds out that he was married to Sara so she transforms herself to look like her. Lauren and Mouth nearly get it together only for Skills to come back to Tree Hill.