Brenda becomes fascinated by Kelly's hip mother Jackie. But Brenda is unaware about Mrs. Taylor's alcoholism and drug use which makes life hard for Kelly. It's not until at a West Beverly High Mother/Daughter beauty pageant that Brenda finds the truth which gives her a renewed appreciation for her own mother. Andrea blossoms at the pageant while writing an article about it. Also, Jim becomes hooked on playing his new electronic keyboard in singing old songs.

Cindy's mothering instincts upset both Jim and Brenda after she brings an injured Dylan to recuperate at their house after he has a accident while surfing in dangerous conditions, while Dylan's father is arrested for income tax evasion. Kelly gets involved with a shy volleyball player named Kyle who is reluctant to make a move on her. Meanwhile, David and Donna are reluctantly paired for a Romeo and Juliet scene as a class project.

Acting as a "big brother" to a 10-year-old boy, Brandon is asked to keep a secret that needs telling about his single mother's physical abuse. Meanwhile, Kelly fears a familial connection to David when his father, Mel, and her mother, Jackie, begin dating. So, Kelly becomes determined to keep them apart. Also, Brenda can't keep the absent Dylan from her thoughts while he is in Hawaii visiting his mother.

Emily leads the gang to an underground nightclub where she attempts to show Brandon the ultimate pleasure with drugs after she puts a hallucinogen in his drink, with disastrous emotional and financial consequences for him when they are forced to flee from a police raid only to leave Brandon's car behind which gets stripped and ripped apart. Meanwhile, Kelly and Donna worry about David who gets drunk at the rave, while Steve and Andrea get lost in the inner city looking for the rest of the gang and driving to the wrong place each time.

Steve arrives in Albuquerque, New Mexico and tracks down his grandfather, Al Brown, a diner owner. Al explains that his daughter gave up Steve because she was very young and wanted him to have a good home. He sadly reveals that Karen Brown died in a car accident many years ago. Steve leaves flowers at her grave, and convinces an eccentric Santa-like charter pilot to fly him home for Christmas. Back in California, Cindy is depressed about her first Christmas in Beverly Hills. She invites the kids' friends and their families for Christmas Eve dinner, but everyone has other plans. Brandon visits Emily in a psychiatric hospital, where she is doing very well. Meanwhile, Brenda begins work at an upscale clothing store. A mysterious old man steals a Santa Claus suit from Nat at the Peach Pit, and later shows up at the boutique store where Brenda works. She feels bad when her brass boss throws out the cheerful old man. After work, Brenda stops the police from harassing the old derelict wearing the Santa suite and invites him over for dinner, much to the wariness of Jim and Cindy. Also, Dylan goes to see his father in prison, and talks with the same Santa. Elsewhere, Kelly's mother, Jackie, is furious when David's father, Mel, backs out of Christmas Eve plans because his estranged wife asked him to come over with David. Samantha, Kelly, Jackie, Andrea, David, Mel, Donna, Dylan, and Steve all show up at the Walsh house for dinner and caroling. The old man in the Santa suite gives everyone presents and describes his lonely life: his children are grown and his wife died a year earlier. He thanks Brenda for her kindness and generosity, then mysteriously disappears as footsteps are heard on the roof.

Andrea fights with the school board to lead a campaign to have condoms distributed at West Beverly. But not all of the gang and their parents are happy about it since Donna's uptight, influential, and fiercely conservative mother, Felice, is opposed to any sex education in schools and has the PTA rally around her for her own self-serving support. Meanwhile, Brenda writes a term paper about her experiences with her pregnancy scare, which upsets Dylan who feels his privacy should be kept private. Also, David wants to plan a special evening with Donna.

When Kelly's mother Jackie, divulges the secret that she's pregnant, misunderstandings and grapevine talk between Kelly, David and Donna threaten to end the relationship between her and David's father Mel. Meanwhile, Nat takes Brandon, Steve and Andrea to the racetrack to bet on some horses due to Andrea's "power" to see the winner, and Dylan plans a special Valentine's Day for Brenda, of donating blood.

After missing curfew a few too many times by staying over late at Dylan's house, Brenda is grounded and is forbidden to go surfing with him in Mexico for the weekend. But Brenda secretly decides to go anyway and asks Kelly and Brandon to help cover her tracks. Meanwhile, Kelly becomes acquainted with Jake Hanson, a handyman and an old friend of Dylan's, who eases her fears over her mother deciding to marry David's father and both become attracted to each other, despite their age differences.

Brenda faces the wrath of her parents after her disastrous return from Mexico. In a desperate attempt to keep Brenda and Dylan apart, Jim bans him from coming over to their house which only alienates Brenda even more, especially when Brandon and Kelly take out their troubles on Brenda over lying for her during her surfing trip. When the Taylor house suddenly floods from a ruptured water pipe, the Walshes reluctantly agree to host Mel and Jackie's wedding at theirs. Meanwhile, Kelly mourns the departure of Jake when his job at the Taylor house is done. But he returns during the wedding and things heat up between them.

Brandon returns to work for the summer at the Beverly Hills Beach Club to find that his parents are new members and Andrea is now working there as the child-care supervisor. Meanwhile, an increasingly devious Brenda defies her parents and continues to secretly see Dylan with help from Kelly and Donna. But Brenda is caught in the act when Jim and Cindy see her with Dylan at the beach club. Brenda reacts by running away to Dylan's house. Steve takes over Brandon's job at the Peach Pit on a bet that he can't hold down a job for a single week.

Brenda learns that living with Dylan isn't what she expected. Jim threatens to freeze Dylan's monthly payments from his trust fund on the grounds that by living with Brenda, he is unlawfully living with a minor. Meanwhile, Kelly and Donna plan a trip to Paris, but Kelly decides not to go, as she wants to stay and help care for her newborn baby sister. Jim, using a little influence and blackmail, convinces Brenda to go to Paris in Kelly's place, to get her away from Dylan. Brandon and Steve flirt with two twin girls at the beach club who later turn the tables on a thoughtless Steve when he plans a date swap. Andrea becomes close to a 10-year-old deaf boy in her day care group.

Dylan and Kelly decide to keep their romantic liaison a secret when Brenda and Donna return from Paris. During a welcome-back party for Brenda and Donna, Brenda confides in a guilt-ridden Kelly that she sees that something has changed about Dylan while she was away. Meanwhile, Brandon discovers that Brooke is not the girl of his dreams after he sees little amusement in her repeated racist and stereotypical comments. Also, Steve finally lands a gig for David at the end-of-the-summer clambake at the beach club.

Fate touches Brenda when her Paris beau, Rick, suddenly shows up, causing her to question her relationship with Dylan. Tragedy literally strikes Andrea when she's seriously injured in a hit-and-run accident. Meanwhile, Donna considers becoming more intimate with David, but she feels guilty about thinking about the subject of sex. Nikki also gets tickets for the Rosie O'Donnell show about the topic of AIDS and gets Brandon, Donna and David to come with her. After Steve gets bad news regarding his low SAT score, he decides to take the risk and gets Herbert to help him hack into the school computer to change his grades.

Brenda, Kelly, and their mothers Cindy and Jackie, as well as Donna and Andrea enjoy a good life for the weekend at a posh health spa, until Brenda overhears a conversation about Kelly's stepdad's unfaithfulness to Jackie. Meanwhile, Jim questions his mid-life crisis with his secretary Dottie and a best-selling author on the subject. Dylan finds two separate fantasies about a future with Brenda and Kelly not fulfilling. Also, Brandon starts gambling on basketball games with Nat's bookmaker Duke.

Dylan's father, Jack, is finally released from prison to enjoy his son's company, and sets eyes on his trust fund. David doesn't know where he will live after his father moves out of Jackie's house. Meanwhile, Brandon's addiction to gambling intensifies when he starts using his own college money. Andrea decides on a new look for herself by her hair dying it red and trading her eyeglasses for contact lenses. But other than Donna, no one seems to notice Andrea's make over. Also, Dylan finally chooses Kelly over Brenda who is worsened after they tell her about their summer fling they had while she was in Paris.

After dissolving the trust fund, Dylan, Jack and Christine enjoy the good life together on a friend's yacht at Marina del Rey. But they are all under observation by unidentified men. Meanwhile, finances force Kelly's mother to put their house up for sale. Brenda, Donna and Cindy take a class in self-defense. Brandon continues gambling and starts losing money totaling $500 which makes Duke rather angry, but lets Brandon slide his losses. Andrea get invited on a date with Jordan. Also, David meets with Serge Menkin, his new recording manager, who insists that David record some different rhythm tracks.

With the possible sale of the Taylor house, Kelly gives her mother and prospective buyers a hard time. David and Donna plan to throw Kelly a surprise 18th Birthday party at the Peach Pit. But things take a unexpected turn when the guests get an even bigger surprise from Kelly when she collapses due to an overdose of diet pills. Meanwhile, Steve badgers Brandon into joining him on a TV dating game show and Steve wins a date with an attractive girl named Celeste Lundey.

Voted the most beautiful senior at West Beverly, Kelly fears that no one's looking beneath her good surface, while she becomes hurt over Dylan not wanting to show her his finished editorial whom he shows to Andrea first. Meanwhile, Steve forgets he's dateless when he goes out with Brandon and his parents to a Lakers basketball game and is randomly chosen to win $10,000 for a half-court shot. Also, Brenda reconsiders her college choice of going back to Minnesota.

Brenda and Brandon are dateless for the Senior Prom. A school announcement is made that any student caught at Senior Prom drinking, intoxicated or with illicit drugs will be suspended from school and prevented from graduating. Footballer Tony Miller asks Brenda to prom on the day of the event, and Andrea asks Brandon at the last moment after her date, Jordan Bonner, gets ill. Steve takes Celeste Lundey, while Dylan naturally goes with Kelly. Donna doesn't eat all day so that she will fit into her prom dress. She is hit harder by pre-prom champagne than the rest of the gang, appears to be drunk at prom, and ends up collapsing in front of Mrs Teasley.

Following a little advice from Gil Meyers, Brandon and the rest of Donna's friends join forces to help her in a major school protest when she is suspended from school and is threatened with not graduating for getting drunk on Senior Prom night.

With 24 hours until graduation, Andrea frets with Brandon over her coming valedictorian speech and her college choice of California University or Yale, as does Brenda with Minnesota. Meanwhile, Dylan gets a windfall when he inherits his trust fund worth $10 million, as well as another surprise visit from his eccentric mother Iris, while he reconsiders his college choice of Berkley or California University. On graduation day, David and Donna are the MCs at the Senior Breakfast gathering while Steve meets with the gang to create something to remember them by.

On the day of graduation, the gang thinks back about their most memorable moments from the past three years. Andrea delivers her commencement address and everyone celebrates. Dylan also has a mysterious encounter with his late father who advises him that he doesn't need to go to college to prove himself. Dylan instead asks Kelly to take a trip through Europe with him for the summer. Steve also decides to go to California University to be near his friends, while Brenda decides to to back to college in Minnesota. The night of graduation, they all meet in the Hollywood Hills near the big Hollywood sign to create their logo on the sign for the whole city to see to remember them for the years they had at West Beverly High School.

Dylan considers buying a gun after his new car is stolen from him at gunpoint. Meanwhile, Brandon's sociology professor Corey Randall asks him to tutor the university's basketball star, D'Shawn Hardell; Andrea and Dan mull over going public with their affair; Brenda and her parents are invited to lunch at Stuart's parents' house in Bel Air as Brenda and Stuart's romance really takes off.

Cindy and Jim throw a party for their 20th wedding anniversary. As Stuart and Brenda's affair grows, he proposes marriage and she willingly accepts. Meanwhile, Brandon falls for an anthropologist grad student named Lucinda Nicholson. A paranoid Dylan buys a gun from a street dealer and almost shoots Brandon. Andrea tells Kelly that she has doubts about her affair with Dan after he tells her about his non-belief in marriage; then Andrea meets Jesse Vasquez, a charming Latino barman, at the party. Mel asks David to look after baby Erin while he heads off to Mexico with his girlfriend.

Brenda is bothered when Stuart tells her that his parents want her to sign a prenuptial agreement; Jim also finds out about Stuart's prenuptial papers and asks Dylan to look into Stuart's background. Meanwhile, David and Kelly grow more hostile to each other when they are caught in the middle of Mel and Jackie's custody battle for Erin. On his first dinner date with Lucinda, Brandon discovers that she is married... to his sociology professor. Guilt plagues Steve he does a favor for Sears and his frat buddies to bed blind date Laura Kingman, a professional college dancer.

After mistaking a woman at a rural filling station for his former girlfriend Emily Valentine, Brandon decides to visit Emily's home in Marin County north of San Francisco. He learns that the Valentines have moved to Greece, but runs into Emily by chance on a cable car in San Francisco. They rekindle their romance and decide to spend Thanksgiving together, but Emily does not reveal that she must move away in a week. Back in Los Angeles, the KEG frat house and Alpha sorority serve Thanksgiving dinner at a halfway house, and John Sears tries to take advantage of a 15-year-old girl. Steve intervenes and has the fraternity president distract John. Meanwhile, Dylan declines Kelly's Thanksgiving invitation because he plans to go surfing, but later agrees to dine with the Walshes. When Kelly comes over with her family, she snaps at Dylan and makes a scene. Elsewhere, Andrea is hesitant to attend a Thanksgiving soirée at the home of Dan's parents. Jesse, the bartender from the Walshes' anniversary party, is working Dan's parents' party; he asks Andrea out, and she willingly gives him her address.

David's work and study schedule begins to take a toll on him when mid terms come around, leading him to start using crystal meth. His erratic behaviour worries Donna and Kelly. Dylan wants to help Suzanne with her financial troubles by giving her $10 000 but Jim urges Dylan to let him do a background check on her first. Steve decides to take his suspicions about John Sears to their fraternity chapter president. Brandon continues to tutor D'Shawn in sociology but still feels that Professor Randall is giving him preferential treatment. During a basketball game, D'Shawn sustains an injury that he fears will impact his future career prospects. Andrea learns from her new RA that Dan Rubin has transferred to another dormitory.

The side effects of David's burgeoning drug habit cause him to fall asleep in the park whilst babysitting Erin and she goes missing. Brenda, Donna, Brandon and Steve head out of town on a ski trip where Donna meets a handsome ski instructor. Dylan finds himself slightly out of his depth when Erica gets her first period after their swimming lesson. Jim's background check on Suzanne yields some unexpected results and Dylan confronts her upon her return to Beverly Hills. Andrea receives a surprising medical diagnosis.

Kelly's disapproval of her mother's return to modeling increases when she learns that her baby sister Erin is involved. Meanwhile, the Walshes finally learn that Dylan is broke when the proposed Peach Pit expansion leads to an exposure of his finances. Valerie, still smearing with both anger and pity after catching Dylan cheating on her, confirms to them that Dylan is bankrupt. Jim then offers Dylan financial assistance. But the growingly misanthropic Dylan is too far gone to accept any sympathy and rudely blows off Jim. While Donna has trouble balancing the affections of both Griffin and Ray, she sees Griffin's sleazy other side when he whisks her away for an overnight trip to Catalina Island and attempts to seduce her. David's love experiment by handcuffing himself to Clare's bed to win her affections backfires when her father shows up and takes her out to dinner, leaving David alone. The next morning, when Steve and David come over to Dylan's house to talk about the Peach Pit After Dark expansion, they find Valerie in bed with Dylan. Steve, being the person he is, draws the wrong conclusion and responds by punching Dylan in the face.

Dylan enters a rehab center after all of his friends conduct an intervention. Valerie and Clare, left out of the intervention, spend the day shopping and bonding with each other. But after one day, Dylan runs away from the clinic with a little of Valerie's help. Dylan then alienates Valerie more with his continuing drug use and attitude in which she walks out on him for good. Kelly gets a modeling offer from Seventeen magazine. Meanwhile, Ray has dinner with Donna's wary parents Felice and John. Also, David and Clare's homemade video of their lovemaking disappears and turns up in the home of Donna's parents.

In the aftermath of the house fire, Kelly suffers second and third degree burns on right wrist, ear, and the whole right side of her neck. Allison's injuries are much more severe, but she maintains a positive attitude. Brandon is racked with guilt because of his feelings for Emily. Kelly does not react well when she learns that Emily is still in town. She calls Dylan to discuss her insecurities and Brandon visits him in search of advice. Kelly believes that Brandon is only staying with her out of guilt, but Emily eases her mind when she reveals that he expressed his love for Kelly before the fire. Meanwhile, Steve feels guilty for the house fire and calls upon his father, Rush, to help out. Griffin's father hires an accomplished attorney for Steve and Griffin where Rush advices both to plead guilty to criminal trespassing in order to avoid jail time. Steve and Griffin receive two years of probation and community service... and are forbidden from operating dance clubs or parties for two years. Steve is furious to learn of this provision, especially after he discovers that Griffin in fact stole the keys from his father's real estate office to the house, rather than obtaining permission to use it for the rave. Steve tells his father that he didn't know about what Griffin did, but Rush (being more arrogant and narrow-minded) refuses to believe Steve and tells him not to ever call on him again for help. Afterwards, Steve physically attacks Griffin and orders him to leave the fraternity. Elsewhere, Ray's perpetual bad mood confuses Donna. He explains that his mother always begins drinking around the holidays, as his drunkard father left her on Christmas... after pushing her down the stairs and causing her to have a miscarriage. Andrea and Jesse throw a party for Hannah's first Hanukkah. Jesse obtains work as an attorney for those who cannot afford representation. He is frustrated by the court treatment of a single Mexican immigrant father, whose kids are taken away when a babysitter neglects them. At the end, Dylan comes home from rehab and is greeted by a letter from a stranger who found Erica's bathroom note pleading for his help.

Lenny becomes an outcast when he is suspected of the campus rape despite his protest of innocence which prompts him to ask Brandon to help him prove his innocence. At the same time, the real rapist stalks an unsuspecting Donna and violently attacks her in the beach apartment. Meanwhile, Dylan accidentally becomes privy to Andrea's affair with Peter when he sees them together at Charlie's motel. When Andrea decides to leave Jesse to be with Peter, he reveals that he doesn't share the same views as she. Elsewhere, Valerie asks Steve to help secure the rock group "The Flaming Lips" after she cancels Ray's bookings, and Donna wrongly blames David for Ray's departure after Valerie lies to her that David is the one responsible for Ray leaving town.

Brandon and Clare have the same bad dreams involving "Jeopardy" host Alex Trebek and announcer Johnny Gilbert while competing with each other and Andrea for a spot in the show's college tournament. After learning from Andrea about her affair, Jesse moves in with Dylan and talks about the possibility of divorce while Dylan tries to reason with him to make up with her. Meanwhile, the reconciliation of Mel and Jackie gives David hope of reuniting with Donna whom he still has feelings for.

Kelly finally becomes a cover girl on Seventeen magazine, but hesitates to continue modeling due to her fire burn scars. While coping with her newfound stardom, Kelly learns that she has a new admirer: the horribly scared Alison from the fire that night. Ray returns to Beverly Hills and to a bravo return appearance at the After Dark. But Ray's mother LuAnn, in an intoxicated state, ends up tipping off David and Clare about his unfaithfulness to Donna with Valerie. After David and Clare confront Ray, and then Valerie, they decide not to tell Donna to avoid hurting her feelings. Meanwhile, Andrea thinks about her future after Jesse is offered a law position in Idaho. Also, Dylan continues talking with Charlie about the correct script for themselves.

The gang helps Brandon repair the Walsh house after it falls out of escrow, and Steve decides to move in with him and Valerie. Kelly prepares to celebrate her 21st birthday party at the Greek Concert Hall with the gang. Ray becomes the prime suspect in the theft of money and several jewelry items from Donna's parents and others. But Valerie exposes Ginger as the culprit which at the end is revealed to be a scam for the gang to get to like Valerie again. Meanwhile, Dylan goes off in search of the mobster, Anthony Marchette, who was the mastermind of his father's death and decides to commit himself to a personal revenge against him.

Kelly's father Bill Taylor, arrives in town apparently to stay, while at the same time, she again catches Colin sniffing cocaine. Joe makes a professional call on Donna's cardiologist father who discovers that Joe may have a certain heart disorder. Meanwhile, Nat refuses to participate in Steve's film festival honoring Roger Corman after the gang sees him in one of Corman's movies from 1972 titled 'Unholy Rollers'. Things take a turn when Joan Diamond, a former actress and Nat's old fiancée, arrives for the festival. Also, Brandon continues to be jealous of Susan's ex-boyfriend Jonathan when he phones to speak to her and Brandon doesn't leave a message for Susan.

On Valentine's Day, Clare makes a bet with Steve that he won't fulfill his pledge of celebrating celibacy at a Valentine's Day party that Donna's sorority throws. Meanwhile, Valerie sets Jonathan up with Ginger to keep her away from David, but her plan fails and when David learns the truth about Ginger and that Valerie will do anything to keep her secret, he leaves Valerie for good. Kelly travels to the rough area of L.A. to buy more cocaine for herself, gets kidnapped, and hits rock bottom. Also, Joe gets bad news when his coach tells him that he is off the football team after news of his heart disorder begins circulating.

Kelly gets admitted into a rehab center and meets her mysterious new roommate Tara Marks. While Kelly is away, Colin and Valerie keep each other company, while romance grows on their minds. Donna investigates a new cardiac procedure that could help Joe. Meanwhile, the gang goes to Mammoth Mountain for a ski weekend where Brandon and Susan get stranded on the mountain in a blizzard, and David gets introduced to two girls at the ski lodge with the same name of Mary.

With Colin in jail, Valerie tries to arrange bail for him. Kelly finally gets out of rehab and moves back into the beach front apartment, and Tara briefly runs away from the rehab center to visit her. Meanwhile, Brandon and Susan, Steve and Clare try to rekindle the romance between Nat and his lost love, Joan Diamond, by taking them out on a triple date. Also, Joe's news of the success of his heart surgery finally relieves Donna.

Brandon and Susan play the lottery and win $5,000, but they lose the winning ticket. Valerie is left hanging when Colin bails out on going to jail. He then visits Kelly for a while before fleeing town. Meanwhile, Steve becomes more friendly with Prince Carl, until a fall down a flight of stairs breaks Steve's jaw, leaving him speechless. David and Donna's fame as video producers spreads in which their video producer Erik, wants them to make another music video. Also, Joe finally returns to football practice.

Valerie and Kelly are reluctantly paired in a Christmas gift exchange, where Valerie goes shopping with Tracy to find the certain gift. Kelly gets a big surprise when she meets Joy, a half-sister from her father that she never knew existed. Meanwhile, Steve and Clare find themselves playing holiday matchmakers to his mother and her father during a Christmas faculty party. Also, David tries to get on the good side of Donna's conservative and domineering mother, Felice, who offends everyone again. Elsewhere, Brandon and Tracy share their exchange of gifts.

On Mother's Day weekend, Clare still grieves over her long-dead mother and Steve cannot figure out how to increase her spirits. Kelly must share a shocking secret with Brandon when she thinks that she may be pregnant. Meanwhile, Valerie makes a pass at David as part of her latest scheme to get him to buy her share of the Peach Pit After Dark as part of her nefarious plan to invest the cash in Kelly's father's business. Donna becomes stressed out from balancing time with David and studying for her final exams, and has another run-in with her cold-hearted business professor, Langley, who openly disapproves of Donna dating David because the professor sees him as a distraction to Donna's future.

On the day before commencement, Kelly becomes determined to oust Valerie from the Walsh house (and town) and pressures Brandon to do so. Meanwhile, Donna decides it's time to move up to a new level of romance with David after getting advice from her grandmother. Steve plans to pull the "best senior prank ever" with some help from his frat brother Muntz, as well as David.

On the day of graduation, a broke and lonely Valerie disrupts Kelly's plans when she takes off on a mindless spree causing Brandon to delay the ceremony to look for her. Kelly's father, Bill, throws a 1920s nostalgic post-graduation party for the class and has the The Cardigans band perform. He also tries to make up with Kelly, who continues to push him away. Steve's stepbrothers, Ryan and Austin, show up for festivities where Ryan is drawn to Kelly's half-sister, Joy. Also, Steve's plans for Clare derail due to her decision to move to Paris with Chancellor Arnold, which leads to Steve and Clare breaking up for good.

With Kelly recovering in hospital from a drive-by shooting in an LAX parking lot, Brandon searches for the shooter and his partner who were responsible for the car theft that Kelly witnessed. Meanwhile, Donna lands another job at a prestigious fashion company and, after much hesitation, finally tells her mother of her living arrangements with David. Steve has yet another run in with Carly and tries to help her financially by landing her a job at the Peach Pit. After spending a torrid night with Valerie, Noah makes a quick exit and refuses to associate with her again.

Kelly is struck with amnesia after suffering mild brain damage from an emergency operation for her wounds, and Noah takes it upon himself to take Kelly on her first excursion outside the hospital. Meanwhile, Brandon quarrels with himself over what to do when he receives an offer for a newspaper job in Seattle. Steve attempts to make his first 'faux pas' as a sports agent to impress Carly at what he does for a living. Donna has an on-the-job crisis when she loses her new boss, Jane's dog while taking it to the vet. Noah also offers to help David look for a band to perform at the Peach Pit After Dark while at the same time, David to continue to keep his financial problems with the After Dark from Donna. Also, Valerie (for some suspicious reason) offers to help Donna with her job to land more clients.

Kelly, still stricken with amnesia, is finally released from the hospital and returns to the only home she can recall, which is her old beach front apartment. Meanwhile, Steve and Brandon secure a production manager, named Terri Spar, for their new newspaper agency, called the Beverly Beat, in order to meet a deadline. Donna's newest designs impress a manufacturer, whose workers she discovers toil in depressing conditions. David attempts to secure a new band for the After Dark and lets the lead singer, Devin, and his band crash at the beach front apartment. Carly reluctantly asks Steve to baby-sit for Zack as she goes out for the evening. Also, Valerie continues pursuing Noah who eventually tells her all about his lonely life and unwillingness to keep a relationship, while Valerie meets a guy interest, a wealthy heir named Cooper Hargrove.

When a sex shop opens, Steve & Brandon want to cover it for the Beverly Beat. Kelly is not happy with the idea. When they also invite David and Muntz to join them, David gets a little crazy and buys stuff that Valarie doesn't like.

In the week before Kelly and Brandon's wedding, they experience a barrage of conflicting emotions about heading to the altar. Meanwhile, David pressures Valerie to get an AIDS test after she confesses to him about her one-night stand with Johnny. Valerie is reluctant to do so, and provokes conflicts with everyone except David, for whom she still has feelings. Steve becomes nervous about losing Sarah when she begins marriage counseling with her estranged husband. Also, different views of marriage divide Noah and Donna; he tells her that he does not believe in marriage.

With a few hours before Brandon and Kelly's wedding, they continue to feel uncertain about the path they are on. Jim and Cindy Walsh arrive in town from Hong Kong to help plan Brandon and Kelly's wedding. Meanwhile, Valerie finally decides to get an AIDS test after Johnny confesses to her that he happens to be HIV-positive, and she asks David to come along with her for emotional support. Steve becomes dateless for the wedding when Sarah decides to go back to her husband after witnessing her friend's messy break up. After the caterer, Jacob, saves Donna's life, Donna agrees to go on a pretend date with him to make his ex-girlfriend jealous. This makes Noah jealous.

Dylan McKay arrives back in town and tries to help everyone with their share of problems as he tries to explain to Kelly why he had decided to come back to Beverly Hills. David hires Matt as his lawyer as he deals with the situation with Denise after her wealthy and powerful conservative parents have him arrested and charged with statutory rape. But Matt has his share of problems financially when his lack of clients prevent him from making his rent and business payments. Meanwhile, Steve's visiting mother, Samantha, angrily tells him that she doesn't like his newspaper's tabloid slant, while Steve counters with his unhappiness over her dating a much younger new suitor. Gina (whom is revealed here to be even more twisted and deranged than Valerie, Sophie or any other woman) sets out to prevent Noah and Donna from reconciling so she can have Noah all for herself. Also, Kelly and her mother, Jackie, clash over her ailing grandfather's wishes to die in peace.

Kelly is called on to make a life-or-death decision for her emphysema-stricken grandfather, whether or not to put him on life support. Matt is hired to defend a tobacco company in a civil suit, causing Kelly to be defense over her dying grandfather issue. Meanwhile, Steve wrestles with his thoughts as news about his mother's lesbian romance spreads. Dylan takes his Porsche out of storage in an attempt to kickstart his life again, but experiences recurring nightmares involving the death of Toni years ago. Gina gives up trying to break Noah and Donna up and turns her sights on Dylan. Donna befriends a female gang member, Sonia, who cannot leave the gang she's in.

Kelly finally learns from Mel that Gina had blackmailed him over his infidelity. But when Kelly tells David, he refuses to believe her or anyone thanks to his renewed involvement with Gina and her skill of manipulation. At the same time, Kelly's mother, Jackie, asks Matt to represent her in suing David's father, while their daughter, Erin, shows obvious signs of depression over the breakup. Meanwhile, Dylan goes to bat for Andrew when he loses his job at the community center. But Dylan's victory over the center is bittersweet when word of Andrew's homosexuality spreads among the kids in which they no longer want Andrew around. Kelly also has to deal with Noah's presence in the beach front apartment which takes up space. Also, Steve and Janet's honeymoon is plagued by a series of mishaps and situations one of which includes a loud polka band playing in the room next to theirs.

Janet goes into premature labor near the end of the honeymoon and gives birth to a baby girl, while Steve maintains a vigil through the week as he worries about the safety of Janet and their newborn. Meanwhile, Dylan asks Kelly and Nat to volunteer in a feed-the-homeless Thanksgiving dinner at the community center. Kelly, seeking a way to boost Jackie's mood, asks her to help out with the dinner, while little Erin continues to mope about her parents' separation. Donna learns of a past indiscretion by her father with Gina's mother, which brings out revelations that could threaten to tear Donna's family apart. Also, David becomes uncertain about where Gina stands with him over her breakup with Dylan.

David and Donna announce their engagement in which all of their friends rush to give them the perfect wedding with Donna's mother, Felice, and Kelly's mother, Jackie, taking over the arrangements and Nat catering for the ceremony and agreeing to escort Donna down the church aisle. Meanwhile, Steve asks Janet to help him form their own publishing company so they both can have time for baby Maddie. Noah returns to Ellen and tells her that he has decided to give their relationship a second chance. At Donna's pre-wedding party, Kelly, Janet, Felice and Jackie are in attendance as well as friends from their past who include West Beverly High principal Mrs. Yvonne Teasley, as well as Andrea Zuckerman and even Valerie Malone. At David's bachelor party, Steve, Noah, Dylan, Nat, and David's father Mel attend the gathering as well as Steve's stepbrother Ryan and former KEG fraternity brother Munz, except for Brandon Walsh who sends his regards to everyone via videotape. The day of the wedding goes without a hitch and at the end, Matt shows up briefly to tell Kelly that he has decided to move back to New York, and she goes back to try to renew her relationship with Dylan.