Three months later. Lois Lane, the second cousin of Chloe Sullivan, arrives in Smallville trying to find the missing Clark Kent to help her to find Chloe's murderer. After being struck by a mysterious ray, she loses control of her car, and finds Clark naked with amnesia in a cornfield. She brings him to Smallville Medical Center, where Martha is with Jonathan Kent, who has been in an irreversible coma. Martha brings Clark back to the farm, expecting him to retrieve his memory. However, Clark is completely dehumanized, having been taken over by his alter-ego Kal-El, whose mission is to find three Kryptonian crystals to assemble into one. Meanwhile in Paris, Lana Lang has an American boyfriend, a young man named Jason Teague, and is having a good time with him, until things take a turn when she gets hit with a mysterious spiritual force containing the spirit of a long-dead witch. Elsewhere, Lex is struggling to recover from being poisoned as he travels to bring an ancient object retrieved from an excavation in Egypt which Clark/Kal-El is also after and uses his flying abilities to steal the crystal... in midair. Also, Lois visits the imprisoned Lionel to talk with him about Chloe, while Martha has a meeting with an associate of Virgil Swan's, named Bridget Crosby, who gives her a new type of kryptonite to combat Clark/Kal-El.

The mystery surrounding Chloe's death deepens as Clark and Lois investigate, discovering that Lex Luthor and Lois' abrasive and militarist father, U.S. Army General Sam Lane, are somehow involved. Meanwhile, Lana returns to Smallville after finding out that the symbol that appeared on her back in Paris is also on the cave wall. In prison, Lionel Luthor prepares for his murder trial and sends out a liquid-metal assassin to keep Clark and Lois from investigating Chloe's 'death'.

Without the approval of his father, Clark kicks off senior year by trying out for the Smallville High Football Team, who are now coached by Lana's new boyfriend, Jason Teague. Former acne-ridden nerd Abigail Fine returns from the summer looking beautiful after some Kryptonite powered plastic surgery that spells trouble for Lana and a former tormentor when Abigail discovers that the side affect makes people insane and delusional to anyone she physically kisses. When Lois investigates Abigail's history, her ruthless, plastic surgeon mother, Dr. Fine, decides to silence the curious but klutzy Lois by enforcing the surgery on Lois. Meanwhile, Martha accepts a job managing The Talon while Lois starts working for the school paper the Torch, and gets just a little closer to Clark.

The Smallville High cheerleaders are using a kryptonite mixed love potion to seriously change the behavior of their victims.

In 1604, in southern France, Lana Lang's distant ancestor Countess Margaret Isabel Thoreau and two other evil witches are condemned to be burned at the stake by Magistrate Wilkins, but Isabel manages to spit her blood on a symbol on a page of their mighty book of spells. In the present day, Lana buys the book on eBay, and by touching the blood-spotted symbol, resurrects the evil countess who possesses her body. Isabel/Lana uses a spell to let the other two witches posses Chloe and Lois. The powerful trio vows to pursue its quest for the three (actually Kryptonian) magical stones which can bring them unseen power. The trio enters a 'surprise' birthday party for Chloe in the barn of the Kent Farm and Isabel throws a spell to make the spectacle really hot, so Clark is one of many boys dancing and drinking in boxer-shorts when his appointment arrives, a representative from Princeton University, who is impressed in a way which can't amuse Clark's parents. The vicious witches cast spells against Jason, who is thrown out of a window but caught just in time by Clark, and Lex, who is made to play the piano constantly so his fingers start bleeding till Clark shoves the piano away, and even to draw the super-power from Clark.

When Lana is attacked in her apartment and Jason in his car by an invisible being, everyone believes that Alicia Baker was responsible, except Clark. However after a series of circumstances, Clark begins to doubt Alicia's innocence to the mysterious attacks. Alicia tells Clark that she'll offer to prove her innocence if Clark reveals his own superpowers, but Clark refuses. So, Alicia secretly shows Chloe the abilities of Clark, expecting people to leave them both alone. But elsewhere, Lois discovers that the real culprit of the attacks is the deranged Tim Westcott who's jealous of Alicia's abilities which leads to him murdering her, and then goes after Clark. Meanwhile, Genevieve Teague arrives back in Smallville and approaches Lex Luthor to get his help to separate her son Jason from Lana.

Clark is wooed by the offer of a Football scholarship from Metropolis University but faces a dilemma over whether he should accept, knowing he has such an advantage on the field because of his superpowers. Meanwhile, Lois is implicated in the death of a member of the Metropolis University Football team which leads Clark to investigate to clear Lois in which they suspect that the team's idol, named Geoff Johns, may hold a clue. Elsewhere, Lex tries to persuade Lana that Jason's mother had ordered him to try to break her and Jason up for mysterious reasons.

As if Lois Lane didn't make enough of a nuisance of herself now living at the Kent farm, she brings in Einstein, a golden retriever, who is the latest victim to be hit by her car, and she meanly calls him 'Clarky', while Clark, kind as ever, hopes to keep him as a pet if the owner isn't found, which his parents hope. Clark soon finds out it's a surviving dog of an experiment to give canines superpowers with daily injections of steroids mixed with meteorite fragments (kryptonite) produced at LuthorCorp, which Lex insists to Clark that the project was abandoned after animal activist protests, thinking they were all put down. Only later Clark finds out, the hard way, the dog and a Rothweiler are abused by evil Josh Greenfield and his kid brother Zack, who run the Smalville animal shelter and abuse dog whistles to control the super-dogs as weapons for robberies. Meanwhile, Jason and his secretive and manipulative mother, Genevieve, are revealed to know more about Lex and his apparently reformed father Lionel, while Lana and Chloe all take a keen interest in the relevance of the Teague and Lang family trees, which have common roots in countess-witch Isobel's French place of origin.

When Jason arrives at Lana's apartment at The Talon, they see that is was broken into and wrecked. They discover that the magical stone they took from the Chinese temple is gone. Lana implores Jason to leave it, and concentrate on their romantic relationship instead. But the two meet at Lionel's office, who strongly denies any knowledge of the theft and accuses his son Lex, who makes another innocence-claimant. Meanwhile, the Kent farm gets an uninvited guest's guest: Lois Lane's younger sister Lucy, a violinist who left her fancy Swiss boarding school. The Lane girls start hanging out at Clark's place and at The Talon, where Clark catches Lucy stealing from the till; she says to be in debt with Swiss loan shark Marcus Becker "to afford the lifestyle" of the spoiled brats in her class. Lex knows Becker as member of a major crime syndicate he has business problems with, and offers to help. Becker isn't content to take Lex' money, he kidnaps the sisters to extort more, Clark decides it's time to use his superpowers.

It's almost graduation, and that means it's time for the prom. After a car accident, a meteor-infected student in-the-run for Prom Queen starts body-swapping. Meanwhile, a dead body is found on Lex's mansion grounds.

Kevin Grady commits thefts and uses his superpower to delete the incident from witnesses' minds. When he does so with Clark who stopped him after robbing The Talon, much more memory gets wiped, so Chloe must take super-boy home to the Kent farm and help him remember who he is, including discovering together the amazing extent of his superpowers and his feelings for Lana Lang. Meanwhile Lana tells Jason she's neither sure she still wants to go to college nor to stay his girlfriend, claiming it's not Clark but their complicated past, he walks off angry, warning she doesn't realize how much he has been protecting her. Clark and Chloe trace a motor-park pass Kevin dropped to his home, or rather to his father Lawrence Grady, and gradually discover Kevin is in memory manipulation therapy with him in Summerholt neurological institute, where Lex once was a patient, for a hunting accident killing his brother Dillon but escaped. Clark helps Kevin...

On the last day of Smallville High before graduation, the emotionally disturbed and frustrated photographer of the Torch, Brendan Nash, feels rejected by the Universities and decides to abduct some schoolmates to stay with him forever in a replica of the school. He uses his power of 'Medusa Touch' of turning people into stone by mere touch, and brings Lana, Chloe, and other successful schoolmates to the place. While Clark teams up with the nosy Lois to find the other students, he also talks with Jonathan and Martha over his college choices after graduation. Meanwhile, Genevieve and Jason Teague kidnap Lionel and Lex Luthor and hold them hostage in a remote mountain cabin and torture both of them to try to retrieve the second mystical stone that Lionel took from them.

When Lana (possessed by Isobel) kills Genevieve Teague by stabbing her with one of the Kryptonian Knowledge Crystals after she attempts to steal it, it triggers a cosmic event that not only severs Lana's link to the spirit Isobel but also sends meteorites from deep space toward Earth and Smallville. At the graduation ceremony for Smallville High, the military arrives to evacuate the town after news that another meteor shower is imminent. Fearing he has a link to the meteorites, Clark goes to talk to the spirit of Jor-El, who informs him that his only hope is to unite the knowledge crystals in the cave. With time running out, Clark sets about locating the final two crystals as meteorites reign down upon Smallville. Lana gives Clark the third stone they recovered from China, which was in her possession all this time, while the second stone is on Lionel's person, which activates. Lex offers to protect Lana and have her flown to New York City, but she gets caught in the meteor shower while riding in a helicopter. Lois manages to get out of Smallville in time, but Chloe stays behind to follow Clark who retrieves the final one from Lionel which hits them with a burst of energy driving him comatose. Chloe helps Clark retrieve the final stone from the Luthor mansion safe after he is immobilized by kryptonite, and helps him escape from Lex. Clark manages to unite all three stones, which transports him to the wild tundra of the frigid North Pole...

A meteor shower bursts from the heavens, raining destruction on the unsuspecting citizens of Smallville, Kansas.

After Clark lost his powers, he finds that he needs them the most to save his family.

Gabriel Duncan is a deranged teenager who breaks in the control room of a nuclear silo in Smallville, kills the two security guards, and starts the launch sequence to send one missile to destroy Smallville in one hour. He calls his friend Chloe, who is moving to the university, and asks her to leave the town that he wants to destroy because of the population of "meteor freaks." The army does not know which of the sixteen silos might have been broken in by Gabriel. Meanwhile, Clark and Lana sleep together in his room and early in the morning, Lana sneaks out of the house, but Jonathan and Martha see them. When Chloe calls Clark, he plots a simulation of a car accident with Chloe to force Gabriel to disclose his position. When Gabriel meets Chloe, Clark is deadly shot by the insane teenager, dying in the hospital. Suddenly, Lionel Luthor awakes from his catatonic situation in Belle Reve and Clark's body vanishes from the hospital which leads to both meeting at the Kryptonian Fortress of Solitude at the North Pole which leads to a surprising discovery for Clark. Elsewhere, the evil Lex continues to obsessively study the black spaceship at the LutherCorp warehouse and discovers that something else has climbed out of the ship.

Clark meets Arthur "AC" Curry, a young man with extraordinary powers underwater. AC is in Smallville hoping to sabotage a Luthorcorp experiment that is threatening sea life. While in Smallville, AC forms an attraction to Lois.

Lana tells Clark that she is moving to the Metropolis University and she is accepted in the Tri Psi Sorority, a sisterhood with hot vampires led by Buffy Sanders, and Lana is transformed in a vampire. Meanwhile, the chief-editor of The Daily Planet, Pauline Kahn, denies an intern position to Chloe, but in the end she proposes Chloe to write a good story to prove that she might be part of the team of reporters. Meanwhile, Lex intimidates Professor Milton Fine, but in retribution he shows a dossier about the secret experiments that Luthorcorp is performing in the campus of the Kansas University. When Clark sees Lana at Chloe's room, he believes she is with a hangover; later, he goes with Lana to a Halloween costume party promoted by the Tri Psi. When Lana attacks Chloe, Clark discloses the truth about Buffy and her sisterhood of vampires and tries to find a means to save Lana and Chloe when she gets bitten by the evil vamp Lana.

While working in the night shift at the Daily Planet, Chloe receives a distressed phone call from a woman claiming that she is in danger. Chloe and Lois schedule a meeting with the woman, but a car runs over her and the cousins witness the murder. Meanwhile, the close friend of Jonathan, Senator Jack Jennings, visits the farm to rest from his campaign for the senate against Lex Luthor. Jonathan is surprised by the visit of Detective Maggie Sawyer, who is investigating the death of the nineteen-year-old stripper that Chloe and Lois witnessed last night. She found a picture of Senator Jennings with the girl and is following the lead. Clark believes Lex is involved with the crime, but Lex helps him in the investigation. Lois decides to go undercover by working at the nightclub as a stripper to investigate the murder. When Lois meets the criminal, she is abducted and her life is in danger.

While visiting Lana in Metropolis, Clark opens a package addressed to Lana apparently sent by Lex Luthor and is wounded and infected by a splinter of silver kryptonite. This unusual piece of kryptonite causes Clark to have paranoid delusions, and he sees Chloe, Jonathan, Martha, Lana and Lex plotting against him. He defends himself against his "enemies", jeopardizing the lives of his dearest friends and family. But eventually help comes from a most unlikely of source: Milton Fine.

While returning home with Lois, Martha is hit by a flash of light followed by a thunder and contracts a lethal Kryptonian disease. Clark fears that Jor-El thus makes him pay for his resuscitation and asks for help from Professor Milton Fine, who tells Clark that Jor-El was a dictator on Krypton, who destroyed their great leader General Zod and the planet but sent Clark to Earth to dominate the world; the death of Martha would only be prevented by destroying the Fortress of Solitude. Meanwhile, Lionel convinces Chloe to investigate who Milton Fine really is. When Lois, feeling offended because Lex called her a "muffin peddler", meets Chloe, the double visits LuthorCorp., where the truth is revealed: Professor Milton Fine is actually a Kryptonian artificial intelligence unit, created by Jor-El but re-programed and corrupted by the Kryptonian rebel General Zod, who was executed for treason, and had his spirit banished to the hell-dimension of the Phantom Zone. Fine, a Brain-Interactive-Construct (aka: Brainiac), is trying to trick Clark into releasing Zod's spirit from the Phantom Zone by destroying the Fortress of Solitude.

On Christmas Eve, Lex travels to a dangerous neighborhood in Granville, Kansas, dealing dirty means to cut Jonathan Kent of the race to the senate. He is shot twice in cold-blood when a couple of junkies steal his car, and Lex has a near-death vision of having a possible middle class lifestyle with a pregnant Lana as his wife and their son Alexander. In his near death experience, Lex is a simple man beloved by the people of Smallville and best friend of Jonathan and Clark. Meanwhile in the real world, he is submitted to a life-threatening surgery ordered by Lionel to avoid becoming crippled. Also, Chloe asks Clark to deliver many Christmas gifts to poor children, and Clark meets a sad and disappointed Santa Claus contemplating suicide. In the end, Lex concludes that love is cursed, based on the fate of Julian, Lillian and Lana, and power and money are the most important values in his life... which leads to him finally starting down the path of the dark side beginning when he secretly orders the execution of the junkie couple who attempted to kill him.

While running for campaign to the senate, Jonathan hires Lois as his advisor. Meanwhile, his opponent Lex is visited by a group of fans lead by the fanatic Samantha Drake, and the deranged woman threatens the safety of Jonathan by attempting to assassinate him at a political rally by using Lois to carry out the deed. Meanwhile, Lana discusses with Clark their sex life on why he no longer wants to make love to her, and Clark exposes his innermost fears to Chloe that Lana will discover his secret superpowers if he continues his romance with Lana. Elsewhere, Lionel takes and eliminates the dossier Griff has prepared to Lex to discredit Jonathan, and offers his financial support to Martha.

A deranged policeman who survived the attack of the Kryptonians and his policewoman fiancée break into Lex's mansion asking for the location of the spaceship so they can go public with the news of "aliens on Earth". But Lex locks himself in the panic room. Clark accidentally finds the association of Lana with Lex in their research of the spacecraft when Lana is kidnapped by the renegade cops to force Luthor to leave the room. Lex gets shot, but Lana escapes to the panic room with him. Meanwhile, Jonathan presses Lois to find out who is funding his campaign and Martha tells the truth about Lionel.

Clark reveals his secret to Lana, Jonathan and Lex learn the results of the senatorial election, and there is a tragic car accident on the highway that takes the life of someone Clark loves, forcing Clark to appeal to Jor-El for help.

Clark Kent drops out the rest of the semester from Metropolis University to help Martha on the farm. He misses Jonathan and has not superseded the loss of his foster father. Martha offers Jonathan's watch to Clark, but he refuses. Martha goes to Metropolis to donate Jonathan's belongings to a mission, and she is assaulted by two lowlife criminals. However, she is rescued by a masked and powerful vigilante, but one of the punks steals the watch. Clark feels guilty about the watch and visits Chloe, trying to track the muggers. They decide to find the 'Angel of Vengeance,' and when they meet her, she discloses her identity of Chloe's klutzy colleague Andrea Rojas and tells that she became powerful six months ago after a heart transplantation of a donate that was hit by the meteor shower. Her mother and she were attacked by a mugger who killed her mother while Andrea survived, thirsty of revenge against the killer of her mother. Clark joins Andrea, but with a different viewpoint of justice since Andrea believes in killing criminals who have gotten away with murder through legal technicalities, whereas Clark still believes in the court system despite it not working most of the time. Meanwhile, Lionel tries to take the LuthorCorp from Lex, but he is blackmailed and gives up his intention.

During a power blackout, Chloe sees the ghost of a girl and cuts her both wrists. Chloe is interned in the hospital, and the psychiatrist diagnoses that she had a breakdown due to stress. Lana asks Lex to send Chloe to a mental institution for treatment since nobody believes her. However, Clark brings his friend to Lois's apartment above The Talon, where Chloe is possessed by a spirit of the dead girl, called Gretchen, and shows Clark the place where the skeleton is hidden in the Talon's wall. Chloe leaves the apartment alone seeking revenge against the killer, while the deranged orderly Michael Westmore kidnaps Lois. Meanwhile, Clark researches for information about the death of Gretchen in old newspapers. Also, Lionel encourages Martha to take the late Jonathan's place as senator to move on with her life.

After being released from a prison in a laboratory of Luthorcorp's Cyntechnics by sympathetic scientist Dr. Hong, former Metropolis High football player Victor Stone is chased by armed security guards and hit by Lana's truck, without any harm. The car is totally destroyed, Lana wounds her forehead and Victor takes her to a hospital. Lana calls Clark, and he meets Victor, who played football against him in high school and died a year ago in a car crash. Victor explained that he became a living machine as part of the machine project researched by the evil Dr. Allister Krieg sponsored by Luthorcorp. Further, he misses his girlfriend Katherine. Clark promises to help him and visits Lex, who lies and tells Clark that he was not aware of the project. Meanwhile, Martha is blackmailed with a DVD showing Clark on a security camera rescuing the unconscious Lana from the warehouse explosion (from episode 'Lockdown') and Lionel offers to help her find the blackmailer.

Simone, a gorgeous blonde, comes to Smallville hypnotizing Clark with a blue pendant ruining his relationship with Lana, as well as hypnotizing Martha and Lex.

The lonely Lana gets addicted in a meteor rock cocktail developed by her new acquaintance student of medicine, Lance, which allows the user to have a near-death experience and visit the dead loved relatives and friends. Meanwhile, Clark goes to Honduras, where there is a massive destruction, trying to find Milton Fine and the spacecraft after following a lead from Chloe. When Lana gets in trouble, Clark returns to Smallville but is injected with the serum. In his trip, he meets Jonathan, who tells him that Lionel Luthor knows his secret, while Martha gets close to Lionel.

When the foster mother and chief of staff of Martha's, Naomi, is brutally murdered, her adopted daughter, Maddie stays with Martha and Clark. The girl becomes close to Clark and speaks for the first time in years. But when she discloses her power to shatter glass, she becomes the prime suspect for the death of Naomi and her biological mother after Lois voices her suspicions to it. While Clark investigates the origin of Maddie, her powerful father, who also has the same ability, breaks out of prison and abducts her. Meanwhile, Chloe witnesses Lex and Lana too close to each other, and later she accuses Lex of taking advantage of the vulnerable Lana.

Lionel Luthor is chased by a man with a mask and forced to play hangman to save his life when he traps Lionel in his limo in the path of a moving train. Later, he is abducted by the same stranger who places Lionel in an abandoned warehouse where he has to play lethal 'Jigsaw' type games to survive. Martha is also kidnapped and in his last test, the life of Martha is also put at stake and Lionel has to fight to save her life. Meanwhile, Chloe, Clark and Lex join forces trying to find Martha and Lionel.

Standing outside the Metropolis courthouse with Chloe, Clark saves Graham Garrett from a car which would have crushed him. Graham insists to repay the favor by offering Clark whatever he wants, including the opportunity to be with Lana again. Graham later turns out to be a hired killer with chameleon powers that render him invisible. Clark also gets angry at Chloe for keeping Lana and Lex's affair from him. When Clark realizes that Graham wants to kill Lex and Lana to protect his identity, Clark rushes to find and ptotect them both.

Jonathan Kent appears to Clark on his birthday and instructs him that he needs to kill Lionel Luthor because Lionel knows his secret. Meanwhile, Lionel comes clean to Martha about his knowledge of Clark's secret since his possession by Jor-El, and some of his scribblings from his now-telepathic link to Jor-El are revealed to announce that the "Vessel of Zod" is coming. Meanwhile, Lex has another meeting with Milton Fine who tells Lex that he is trying to make a vaccine to protect mankind against an alien virus. When Lana expresses suspicion that Fine is not who he appears to be, Fine reveals his real identity and that "Jonathan Kent" is just another copy of Fine (The Brainiac) sowing seeds of anxiety in Clark.

After "being prepared" by Fine, Lex is abducted in a field by a strange light. Meanwhile, Clark goes to the Fortress of Solidude where the spirit of Jor-el gives a dagger to Clark and advises him to destroy Lex, who would be the vessel of the spirit of Zod outside the Phantom Zone in which Fine, the Brain-Interactive-Construct, is trying to release. Martha travels with Lois to Washington in an airplane of the Luthorcorp. When Zod is released, he possesses Lex, and traps Clark in the Phantom Zone. Fine unleashes a powerful computer virus, creating chaos on Earth. Lois and Martha faint in the airplane without oxygen as another copy of Fine/Brainiac hijacks the plane. Chloe and Lionel are attacked by a raged crowd, while Lex/Zod and Lana declare their love for one another as both plan to travel their path together on the dark side...

With Clark banished to the Phantom Zone, Metropolis is in shambles as the city riots, and Chloe & Lionel plot to rid Lex of General Zod...one way or another.

Still trying to fix the aftermath of Black Thursday, Clark gets a little run down and begins to show symptoms of the common cold, including a sneeze that has some effects of its own. Meanwhile, someone kidnaps Lex.

One of the Phantom Zone escapees is up to no good in the local forest. Clark is jealous of Chloe's new boyfriend from the paper. Meanwhile, Lana and Lex finally sleep together and Lois falls in love with Oliver Queen, Martha's benefactor.

Clark and Lois are on the trail of a thief that Lois has named the Green Arrow Bandit. But this "bandit" may not be as big a villain as they believe.

Classmates from Lex and Oliver's reunion begin to die, and they begin to blame each other.

Clark is thrilled when he learns that his friend, Raya, managed to escape from the Phantom Zone and has come to see him in Smallville. The two grow close and Raya shows Clark how to restore power to the Fortress of Solitude. However, Baern, the spirit of a killer with the ability to control and feed off electricity, also has escaped from the Phantom Zone. After possessing the body of a street kid in Oakland, California, Baern makes his way to Smallville to take revenge on both Raya and Clark for his imprisonment. Meanwhile, Lana gathers more information about Lex's research project called ROCK. Also, Jimmy Olson returns to try to win back Chloe's affections by tailing Lana to find any dirt on Lex Luthor.

Lois Lane is furious at lover Oliver Queen for leaving instead of waiting till she 'makes it worthwhile' but ignores he witnessed a thug attacking a couple and was badly wounded by the carjacker he fought off. Clark reads an article about the Green Arrow striking there and drops by finding Oliver uncharacteristically careless and irritable; his X-ray vision sees Olliver injecting himself. It's a wonder drug developed for Queen Industries by Dr. Pamela Black, which almost instantly restores damaged tissue, but the scientist advices in vain against taking significant doses because lab mouse trials prove a major aggressiveness side-effect. Lex is vehemently against Lana -whose health problems are soon diagnosed a happy surprise- taking charge of fund raising for a half-way house, without telling her his reason for fearing contact with its clients, even on few occasions: he bribed Dr. Black to administer the wonder drug to its problem youths, one of which was the car-jacker. Martha Clark insists to invite Lionel for the first Thanksgiving dinner after Jonathan's death.

Lex is targeted by a former Belle Reve patient who can move through frequency, and who wants him to come clean about 33.1. Meanwhile, Clark goes to Seattle to hunt down one of the Phantom Zone escapees.

An illegal immigrant from the Mc Nally farm seeks Clark's help. He then uncovers a sinister secret in the farmer's cornfield which has been hidden since the last meteor shower.

The Daily Planet's gossip queen Linda Lake uses her ability to transform herself into water to find the dirt on people and run her weekly saucy story, however detrimental for them. After bringing out baseball star Mike Dawson is doped, Lake drags him into a fountain pond staging suicide, which fan Jimmy Olsen convinces Chloe can't be true. Next Linda overhears Chloe and Lana about her doubts to accepts Lex's marriage proposal because she is not quite over Clark and prints it, to Lex's despair and making Clark realize he's not quite over Lana either. Lex promises Linda any price to find something against Clark, and Chloe has a hard time keeping his being Kryptonian secret, while it makes her furious that people tells her their secrets while complaining when refused another's secret. When Lois tells Clark she suspects Olliver of being the Green Arrow after seeing he has an arm wound at the same spot, but wants him to be innocent either way, he finds an original way to help both friends while she gets Jimmy to help her set a trap for Ollie. Lex is prepared to wait for his pregnant lover...

The Green Arrow sends out for reinforcements and Bart Allen, a.k.a. Impulse, Arthur Curry (Aquaman) and Victor Stone (Cyborg) return to Smallville to help him take down LuthorCorp's secret lab called 'Project 33.1'. During a break-in at the LuthorCorp facility, Bart is captured and tortured by Lex for information to who hired him. Clark sets off to rescue him but is felled by kryptonite. An alarmed Chloe goes to Oliver for help, and the newly formed "justice league" springs into action to rescue Clark and Bart. Meanwhile, Oliver painfully decides to break up with Lois, feeling that his dedication to justice is more important, but he leaves out that information from her.

Clark enters a parallel environment in his subconscious where he is powerless, no one believes the truth about him, and things have turned out much, much differently.

Clark once again becomes "under the influence" of red kryptonite, and will say his true feelings on such things as Lionel and Martha's relationship, and Lana's pregnancy, but there may be someone else that will get affected by the red k.

After receiving a photo of herself dressing in her room, Lana realizes she has a stalker. After hiding out in Chloe's apartment above The Talon, Lana decides to hide out at another surprising location: the Kent farm so Lana can try to find out more about Clark as she grows more suspicious of his abilities. Meanwhile, Jimmy helps Clark try to find Lana's stalker in which he eventually breaks up with Chloe because he believes she isn't truly over Clark, forcing Chloe to take a deep look at her feelings for her best friend.

A boy who got blind during the meteor shower has developed the power to spot other meteor infected people, and Chloe is revealed to be one of them. Meanwhile, Lana closes in on Clark's secret.

Clark has second thoughts about Lana marrying Lex, Lana starts to have the same concerns. Meanwhile... the doctor involved in the secret behind Lana's pregnancy threatens Lex with his knowledge.

Clark and Chloe discover that Titan, another alien escapee from the Phantom Zone, is the hulking star of a secret fight club whose bloody, bare-knuckle battles to the death are broadcast on the Internet. Lois smells a story and investigates on her own but is captured by fight manager-presenter Maddox, the Belle Reve administrator, and forced to become wrestler Athena's first opponent. To save Lois, Clark reveals his ability to catch bullets to Maddox so he can fight Titan, but is stunned to face Lois in the ring instead... Lana returns from her honeymoon with Lex, whose men are looking for Titan, but she's more uncertain about living the life of wealthy and power and has trouble with her pregnancy.

After Lex discovers that Chloe's mother, Moira, has the power to control meteor freaks, he develops a drug to wake her from her catatonic state in the asylum, then he threatens to kill Chloe unless she uses her power to help him recover several meteor-freak escapees from his lab '33.1'. Clark helps Chloe break into the asylum to rescue Moira and finally get to know her mother, and he is almost tempted to kill Lex, but lets him live... again. Meanwhile, Clark rescues Lana from one of Lex's 33.1 escapees, and she later discovers something shocking about her "pregnancy." Also, Chloe decides to write an article about Lex's 'Project 33.1', but Lex silences her by threatening to have her locked away unless she remains quiet about his secrets projects.

After Jodi Keenan, the wife of a Special Forces soldier, sets off a pipe bomb in one of Lex's secret labs, Lionel is severely injured and Lex is taken hostage by the enraged spouse. Claiming Lex kidnapped her missing husband, Jodi threatens to blow up the entire lab with Lex inside unless he tells her where her husband is. Lex naturally denies knowing Jodi's husband, Wes, Clark sets off to rescue Lex, but is immediately felled by the kryptonite lining the earthen walls. Lex and Clark realize the only way they will make it out alive is by helping each other before the bomb detonates. Meanwhile, Lionel reveals to Lana why he forced her into marrying Lex, which leads her to investigate Lex's secret research of his 'Project 33.1' research as well as his work in tracking down the Phantom Zone escapees to capture and use one as part to create his army of 'super-human' soldiers.

After a secret meeting with Lionel, Lana is shot at the Daily Planet by a mysterious gunman. Jimmy is knocked out while studying photographs of the scene and dreams about a 1940, black-and-white version, of Smallville. Jimmy finds himself playing the role of a reporter with Chloe his secretary, and a bumbling Clark also works there, as his sidekick. Jimmy's investigation leads him to Lana, who turns out to be a very evil femme fatale who plans to orchestrate the murder of her tycoon husband Lex by using Jimmy as the patsy. Jimmy's research further takes him to a notorious nightclub owned by Lionel Luther, and Lois is a sultry singer working at club who is having a fling with Lex to help him orchestrate the murder of Lana. Meanwhile, back in 2007, Clark discovers why Lana married Lex after Chloe learns it from Lana. Also, Lois further meddles in the shooting case by stealing a silver-lined cigarette case which holds a clue.

Lex has been secretly trying to turn Wes Keenan, a military man who supposedly died fighting in Afghanistan, into a "super soldier" by injecting him with DNA pulled from the various meteor freaks he has captured. After a crooked senator, Ed Burke, who has been financing the 'Project 33.1', threatens to expose Lex's secret labs, he dispatches Wes to kill the senator. But Lois witnesses the attack and inadvertently becomes the super soldier's next target. Meanwhile, Clark tries to convince Lana to leave Lex, but she refuses and Clark becomes more suspicious about Lionel's involvement with Lana's motivation. Following Senator Burke's murder, Martha is asked to be his replacement in Washington D.C. which means leaving Smallville (and Clark) behind.

When Clark finally discovers Lionel threatened to kill him unless Lana married Lex, he goes after Lionel to silence him once and for all. Meanwhile, Lana tells Lex she is leaving him, and John Jones, the Martian Manhunter, makes a return appearance to help Clark stop Lex, who has captured the last surviving phantom escapee from the Phantom Zone, having possessed a young boy, in order to use its DNA to power him army of super soldiers at his secret lab '33.1'. Clark bids goodbye to Martha as she prepares to leave Smallville for Washington D.C., and Clark finally reveals his secret to Lana to get her to stay in town. But when Lana mysteriously 'dies' in a car bombing, Clark thinks Lex was behind it and sets off to kill him, and has a fateful meeting with the last wraith of the Phantom Zone at Lex's 'Project 33.1' lab at Reeves Dam. Lois goes to Reeves Dam in search of information about Lex's secret lab and is brutally stabbed by a security guard. Chloe finds a piratically dead Lois at the dam where in a moment of weakness, Chloe's secret power is finally revealed.

When Clark Kent confronts Bizarro, the last wraith from the Phantom Zone, the ensuing fight causes the dam to break, unleashing a torrent of water.

Clark and Lois discover Kara's spaceship but before they can open it, Kara appears and knocks Lois out. Clark is shocked after Kara tells him she is there to protect baby Kal-El. Despite Kara's appearance, a despondent Clark decides that without Lana there is nothing keeping him in Smallville, and heads to the Fortress of Solitude to begin his training as a superhero. However, Jor-El tells him Kara's father- Zor-El, who is Jor-El's brother- is evil and Kara is dangerous, therefore Clark must stay in Smallville to find out why she came to Earth. Lex makes a stunning discovery regarding Lana and Project 33.1.

Kara desperately wants to make friends and fit in on Earth, but Clark tells her to keep a low profile until she can get her powers under control. Despite his warnings, when Smallville's annual "Miss Sweet Corn" beauty pageant comes around, Kara signs up and meets the competition; Tyler, Carly, and Tempest, three meteor-infected vixens who plan to use their powers to steal a treasure map to the hidden Smallville time capsule. Meanwhile, Lana returns to Smallville and wants to re-start whatever romance she had with Clark. In Metropolis, Agent Carter interrogates Lex in his further search for Kara's missing spaceship, while Chloe and Jimmy clash with the vain and egotistical Grant over the developing story in Smallville.

Lex hires Dr. Curtis Knox who claims that he can "cure" someone from being a "meteor freak," changing their lives. Chloe takes an interest in this, but Dr. Knox may have another secret as Clark finds out that Dr. Knox is an ageless immortal who needs blood from kryptonite-infected people to keep his young wife eternally young. Meanwhile, Kara makes an alliance with Jimmy to find out where her spaceship crystal is being held, while John Jones warns Clark that Kara is dangerous and tells him to find the Kryptonian crystal before Kara does. Elsewhere, Lana secretly watches Lex through her Isis Foundation to help meteor freaks.

The residents of Smallville are thrilled when "Warrior Angel," a movie based on a comic book, begins shooting in town. However, after the lead actress, Rachel Davenport takes off in stunt car with cut brakes, Clark must step in to stop the runaway car. Unfortunately, an obsessed fan witnesses this heroic event and decides Clark is a real life superhero, whose girlfriend Lana must be eliminated so Clark can fulfill his destiny. Meanwhile, Lex discovers Lionel at the cabin.

Clark learns Kara is in Washington searching for the crystal. Kara is captured after she breaks into the lab and sedated with a kryptonite-infused truth serum. The serum causes her to relive a prior trip to Earth when she followed Clark's biological mother, Lara, to the Kent farm. Clark arrives in time to save her but, searing the machine with heat vision, he also falls victim to the serum and sees what Kara sees: his mother.

Kryptonite and high voltage mix during a lightning storm -- causing Lana to absorb Clark's powers. Using her newfound super powers, she breaks into Lex's safe and steals incriminating evidence -- which she then delivers to Lois and Grant, demanding they run a story exposing Lex's secrets. After Grant refuses to use stolen material, Lana decides to take care of Lex...herself. Clark tries to stop Lana from killing Lex...and a super battle ensues between the two!

Clark hears the voice of his biological mother, Lara, calling for help from Kara's crystal and decides to release her, despite Jor-El's warnings. Lara and Clark reunite and she gives him Jor-El's ring, which contains blue kryptonite. As Clark puts it on, he realizes Zor-El manipulated the whole thing and that blue kryptonite strips him of his powers, enabling Zor-El to take control of the Fortress of Solitude. Meanwhile, Chloe and Lex each discover Lois and Grant have been seeing each other and warn them to stop.

As Christmas draws near, Lois receives a call from an anonymous man claiming that Chloe is attached to a bomb, and the only way he won't let it blow is if she reports the truth of Lex's atrocious experiments about the mysterious 33.1. Lois tries to find a way on her own to stop the mysterious person who is linked to both Lex and Grant Gabriel. Chloe and Jimmy end up getting stuck in an elevator at the Daily Planet with the bomb ticking, prompting Chloe to reveal her secret meteor-rock power of healing to him. Meanwhile, Clark returns from his enforced imprisonment from the Fortress of Solitude. With Kara still missing, Clark uncharacteristically wants Lana to re-open her Isis program of spying on Lex with the intent of taking him down, and wants to become closer to Lana when he has been distancing himself from her. But what exactly does 'Clark' have in mind?

While Clark is still frozen in the fortress, Bizarro grows closer to Lana, who returns the feelings on just as deep a level, even sharing some badly-needed information with him while he still attempts to carry out his intentions of destroying Clark. Lex's brother, Julian, reveals himself to Lionel in an effort to clear the air between all parties involved.

Oliver returns and enlists Chloe in his vendetta against Lex, but a sexy new 'superhero' stands between Oliver and his mission, even if Lex is, ultimately, one of the bad guys.

Clark is convinced that he can find his cousin's whereabouts if he can get into Lex's mind, who's just been shot by the man holding Kara and Lois prisoner.

Pete Ross returns to Smallville and finds a number of surprising changes since his departure four years earlier. Besides resolving his feelings toward Clark since he learned of his friend's secret, Pete has to deal with the acquisition of a superpower of his own: that of his ability to 'stretch' his body courtesy of kryptonite-laced gum he's been chewing and consuming for nearly a year. Meanwhile, Lex continues to sow seeds of anxiety into the amnesiac and powerless Kara over Clark as well as wanting to know about her past, as does Jimmy Olsen.

Lionel kidnaps Clark and holds him in a kryptonite-lined cell at a Luthorcorp facility; Chloe and Lana confront Lionel, who blames Lex, and they then take Kara to the Fortress and plead with Jor-El to restore her memory so she can save Clark.

When Brainiac ends up in a confrontation with Clark after trying to coerce Kara into joining him, he takes it out on Lana.

Despite his father's warning, Lex still finds himself in a power struggle from within over the secret to The Traveler...with some deadly results.

All in one night, the Feds try to head off Chloe, who's hacking into top secret computers, convince Jimmy Olsen that she's a terrorist, and ground Lex, preventing him from flying anywhere.

Clark is shown by Jor-El what life on Earth would have been like, had he not sent him there instead of facing the doom of his fellow Kryptonians.

When a member of the Veritas clan attacks in his name and carves Kryptonian symbols in the victim's chest, Clark stands by his principles in hurting no human being, even though the victim is Lex Luthor

Clark feels that Kara is under the effects of red kryptonite when he discovers that she is the reason for the plane containing the last member of the Veritas exploding. Lex is directed to look for answers surrounding the traveler in the Arctic Circle, where Clark's Fortress of Solitude rests.

It's been four weeks since the Fortress collapsed and Clark disappeared. Green Arrow calls upon Black Canary and Aquaman to locate the missing Clark Kent. Clark, in the meantime, is powerless and residing in a Russian prison camp in Siberia. With Lex Luthor missing and presumed dead, a new ruthless CEO, named Tess Mercer, is appointed the head of LuthorCorp and moves into Lex's mansion with her own dark plans for Clark and Metropolis. Chloe is kidnapped by a clandestine group that has discovered her special powers and they want to test the limits of those new powers by locating Green Arrow and his friends.

Clark's first day on the job at the Daily Planet begins with a bus exploding right outside the building, which leads him and Lois on a trail of someone who might be infected by kryptonite. Chloe finds a runaway teenage girl, named Bette, whom Chloe suspects is involved in the explosion when Bette (whom will later become the fire-starter Plastique) has the meteor-rock power of pyrokinesis. In the meantime, Chloe also meets a local medic, named Davis Bloom, who takes an interest in her, even though she's engaged to Jimmy Olsen. Elsewhere, Tess meets Clark for the first time as she takes over the Daily Planet in Lex's absence and immediately senses something not right about him.

Oliver Queen is poisoned at a charity fundraiser and Clark races around the world to find a cure.

When Tess inadvertently activates the mysterious Kryptonian Knowledge crystal found in the Artic, it emits a high-band beacon which summons an alien queen, named Maxima, who arrives on Earth and begins a search for her new mate, with a kiss that is too strong for humans to survive. Meanwhile, after just moving in together, Jimmy finds a letter that Chloe wrote for Clark that revives Jimmy's insecurities.

After Jimmy and Chloe disappear from sight for a bit and it turns out it has been against their will, Lois and Clark pose as a couple to flush out the kidnapper.

A serial killer is on the loose in Metropolis, and Clark always seems to be one step behind him, while Chloe's paramedic friend seems to think he blacks out and performs the dirty deeds, himself.

Jimmy takes a photo of Clark using his super-speed while saving Lois from danger, but it comes out blurred. Tess decides the story should make the front page for the Daily Planet exposing the mysterious new 'superhero' that. Chloe refuses to continue helping Clark protect his secret, so Clark turns to Oliver for help when Jimmy gets too close to discovering his secret. Meanwhile, Lois meets Sebastian Kane, a new reporter at the Daily Planet, who has the power to see peoples' memories by merely touching. He has been hired by Tess to find the missing alien crystal.

Clark receives a crystal that sends him and a visiting Lois to the Phantom Zone where they run into Kara. Kara tries to open a portal for Lois before it's too late but Zod's wife, Faora, manages to escape in Lois's body and proceeds to go on a rampage through the streets of Metropolis.

When Chloe begins having memory loss when the essence of Brainiac begins replacing her memories with Kryptonian codes, Clark decides to use the Crystal of Knowledge to reconstruct the Fortress of Solitude and ask the spirit of Jor-El for help. Meanwhile, Jimmy begins to worry about Chloe's well-being, while Davis, disturbed by the knowledge that he may have alien origins, begins to become drawn to Chloe.

Oliver gets a step closer to finding Lex, but Clark refuses to help for the time being, due to Chloe's special day, while Lois finds she has special feelings for Clark, who has a surprise (or two) waiting for him at the wedding reception.

The aftermath of Doomsday's attack on Chloe and Jimmy's wedding leaves Clark in shock, but before he can search for the kidnapped Chloe, an evil being, known as The Persuader, appears and attacks him. Rokk, Imra and Garth, also known as The Legion, step in from the future to help vanquish the Persuader and the group realizes Brainiac has taken over Chloe once again. Meanwhile, up at the Fortress, Chloe, as Brainiac, informs Davis he is Doomsday and was created to kill "the other Kryptonian" and destroy the world.

Clark discovers John Jones was shot while working as a police officer, so Clark dons the uniform and goes undercover to find the culprit. Meanwhile, Lana confronts Tess and tells her Lex isn't the man she thinks he is. Lana's shocking news forces Tess to reevaluate her position as the head of Luthorcorp.

Clark and Chloe search for Lana, who has it in her head that things will be better between her and Clark if they were on "a more-even keel," and goes off on her own in search of a suit developed by Luthor, Corp. that will make her invincible.

There is an explosion at Luthorcorp when Oliver is about to announce he controls the interests of Luthorcorp. Oliver suspects Lex is behind the explosion but he realizes the bomb was made by an ex Queen Industries' employee called Winslow Schott. Lana learns her power suit gives her the power to absorb Kryptonite.

Linda Lake comes back to Smallville and blackmails Clark to expose his true identity. However, Clark decides he will reveal his secret by himself. A fanatic teenager fakes a fall so Clark can save her.

Tess devises a plan which will reveal Clark's true identity, while Davis comes up with a plan to ease the demon within him, but finds himself trying to scramble after Jimmy sees him kill someone.

Reflecting on her status in life, Chloe finds that she's not all what she dreamed of becoming, so when a magician asks her to make a wish, little did she dream of it coming true...becoming Lois.

All signs point to the fact that Clark was not the only one that landed on Earth the day of the meteor shower in Smallville.

Chloe and Lois are attacked by two thugs which one of them is hit by Lois with her heel, she starts feeling a bit heroine about it so she recruits Jimmy for the picture so she can convince the people she is Metropolis' new hero, with the name of 'Stiletto', so she can take away the famous red and blue blur. However, Lois may end having contact with this red and blue blur when Clark wants to try to track down the mysterious 'Stiletto'. While Clark tries to help Chloe recover her stolen laptop computer with all of the Justice League's files on it, she continues to hide Davis in the basement of The Talon. Elsewhere, Jimmy is working as a bartender at a nightclub where the thugs who robbed Chloe and Lois reside and are plotting to kill Stiletto to reclaim the city for themselves.

Davis asks Chloe if she can go away from the city with him, but when Clark realizes Davis is alive, he confronts Chloe to give him an explanation about it. Meanwhile, Oliver discovers that Jimmy has become a pill-popping junkie and offers his services and emotional support. But Jimmy is too consumed by his anger and paranoia and brushes off Oliver. Later, when Oliver sees Jimmy breaking into Chloe's apartment to steal money and items to buy more drugs, things get worse when Davis appears and attacks them both. It leads to an angry Clark tracking down Davis/Doomsday to the ruins of the Fortress of Solitude for a brutal confrontation.

Chloe mysteriously returns to Smallville where she gives Clark the idea of killing Davis by telling him he can't keep the beast under control. Unknown to Clark, Tess has gotten together a kill-team affected by meteor rocks to track down Davis so Clark can kill him, but things get out of control when Tess' team discovers that she betrayed them. Meanwhile, Oliver, as the Green Arrow, agrees to help Clark look for things that can stop Davis by breaking into Tess' safe at the mansion to steal some black Kryptonite hoping to separate the two entities apart, while Chloe is revealed not who she appears to be, and Tess is working for another greater power beyond everyone else.

Clark tells Oliver that he must kill Davis, but Clark deals with the fact that he can't take a human life. This leaves the justice league to take the affair on their own hands. Then, Rokk Krinn teleports from the 31st Century to give Clark another Legion time-traveling ring so Clark can exile Davis/Doomsday to the future. But in a surprising twist, Lois confronts Tess about her nefarious plans involving a mysterious crystal and in the fight, Lois accidentally finds Rokk's ring, and gets zapped into the future. Meanwhile, Chloe gets in the middle of Clark and Oliver's fight about Doomsday's human carnage, in which Dianah/Black Cannary and Bart/Impulse intervene. Jimmy finds out Clark's identity, leading to a fateful showdown when Clark attempts to use black kryptonite to split Davis from Doomsday and seal the beast in a large hole in the ground. But nobody is prepared for what Davis will do afterwords.

Clark decides that he is ready to start his training at the Fortress of Solitude to become 'Superman'. However, the spirit of Jor-El insists that he return to Metropolis to cut his ties with the people he knows before he begins. Lois reappears in the city with no recollection of vanishing to the future. Her investigation into a monorail crash brings her into contact with a new reporter named John Corben. John is opposed to the "Red and Blue Blur", and has a secret power and identity himself. Meanwhile, Chloe's friendship with Clark deteriorates when he refuses to use the Legion ring to go back in time to save Jimmy. Elsewhere, Oliver turns down a dark path in his quest to rid the world of evil. General Zod makes his entrance at the Luthor mansion before Tess.

After being hit by a truck, John Corben becomes a human guinea pig when his heart is replaced by a machine powered by meteor rocks, which, in turn, gives him extraordinary strength, and he realizes he can use it to catch his prey...the Red & Blue Blur.

Clark, unknowingly, exposes himself to Zod when a virus is released on Metropolis that turns its residents into zombies.

After an accident, Clark (Tom Welling) is able to read Lois' mind, then he asks her out. Meanwhile, a washed up Oliver finds himself in danger.

A mysterious woman forces Oliver to play in a dangerous game of Russian Roulette and then turns up dead. The police believe Oliver is responsible and arrest him, while Clark reluctantly sets out to prove Oliver's innocence. Meanwhile, Lois angrily confronts Clark over his knowledge about Oliver's suicide attempt.

Oliver tries to help a young street girl, Mia AKA Speedy, get out of her dangerous life by offering to train her, but Mia double crosses him. Lois asks Clark to help her land a job as an on-air television host, but the two are shocked when the station wants to hire them as a team.

Jor-El mysteriously arrives at the Kent farm to hide the Book of Rao, but meets Chloe instead. She tells him that his son, Kal-El is on Earth and lives at the farm. Convinced the Blur is Jor-El, Zod enlists Tess's help in finding him to force him to reveal the secret to his powers. Clark realizes Jor-El is alive and on Earth and races to find him before Zod does.

Superhero twins Zan and Jayna (aka: the Wonder Twins) show up in Metropolis to help 'The Blur' fight crime with their combined shape-changing abilities. But the clumsy and naive teenagers end up botching several rescues, landing Clark in hot water with the District Attorney's office. Clark decides to come forward as The Blur to clear his name despite Chloe's protests. Meanwhile, Lois begins seeing a therapist to deal with her growing romantic feelings for Clark, and gets dangerously close to discovering his secret identity.

Tess kidnaps Lois to find out where Lois went after she disappeared for weeks. Lois's memory of the future depicts a Metropolis under Zod's rule and Clark powerless under the red sun, while Chloe forms a resistance group with Oliver. After learning of these future events, Clark makes an important decision about Zod.

Someone with Oliver's skills as an archer take aim at Lois and Chloe.

A man named Sylvester Pemberton tracks down Chloe and tells her he knows about her team of superheroes and needs their help. However, before he can explain who he is, he is attacked and killed by Icicle. Clark and Chloe's investigation leads Clark to the former headquarters of the Justice Society of America, an underground team of superheros, where he meets up with Nelson (AKA: Dr. Fate), Carter Hall (AKA: Hawkman) and Courtney (AKA: Star Girl). Courtney pleads with Hawkman and Dr. Fate to help her catch the killer that is targeting their group but they are reluctant to resume their duties as superheroes. Clark, John Jones, Green Arrow and Chloe team up to help the JSA stop Icicle before he murders another member of the group. Meanwhile, Lois receives a package from a mysterious agency called Checkmate, run by the shadowy Amanda Waller.

Clark meets the sorceress Zatanna (from episode 'Hex') at a comic book convention, where she tells him that her father charmed a copy of the comic book "Warrior Angel" and it holds magical powers. A young boy, named Alec, steals the comic book and develops super powers, transforming himself into Warrior Angel and saving Chloe from a horrible accident who doesn't know about Alec's true origins. Meanwhile, Lois becomes jealous of Clark's relationship with Zatanna.

It is Valentine's Day and while Clark is out on a date with Lois, he unknowingly becomes infected by gemstone kryptonite, which has magical wish-fulfilling properties. Clark mentions to Lois that he wishes they had a more traditional relationship, so Lois quits the Daily Planet, moves in with Clark and starts planning their wedding. Still unaware of his new power, Clark also casually tells Chloe he wishes she would spend more time watching out for him, so an infected Chloe takes his wish to heart and sets her sights on a new target: Lois. Meanwhile, Zod quarrels with Tess as well as his wife, Faora, over the construction of the new solar tower which he hopes will restore his and the Kandorians super powers which will enable them to take over the Earth.

Clark teams up with Zod's wife, Faora, to investigate the abduction of her sister, Vala, and several Kandorians whom have been experimenting with humans in order to find a way to claim their super powers, while Lois herself is abducted by Bernard Chisholm, a former doctor the Kandorians experimented on, claiming that there are aliens on Earth and he wants the skeptic Lois to write an article about it. But when Zod goes off on his own and tries to stop Chisholm, without his super powers, Clark is conflicted whether to save the life of his enemy. Meanwhile, Oliver investigates the disappearance of money from Tess' company accounts and he discovers that Chloe is responsible and using the embezzled money to construction Kryptonite weapons for possible use against Zod and the Kandorians.

Clark and Lois head out of town for a quiet romantic getaway, but their plans are thwarted when they run into Chloe and Oliver at their Bed & Breakfast Inn. The couples' awkward moment is interrupted by the arrival of the Silver Banshee, who sets her sights on Clark and Oliver. Meanwhile, Tess faces off with Zod with a surprising result.

Tess creates an elaborate hoax in order to kidnap Oliver/Green Arrow, and delivers him to the shady head of the secret society Checkmate, Amanda Waller, who tells him that that the government is recruiting him to serve his country. However, Green Arrow escapes before they can learn his identity. After Oliver brings Clark and Chloe up to speed on what happened to him, the three investigate and Clark is surprised to find John Jones investigating Oliver's kidnapping too. Clark senses that John is keeping information from him. Oliver and Clark are shocked when Tess reveals that Amanda is after something called "Watchtower," which is Chloe's code name in the Justice League. When Chloe is captured by Checkmate agents, Waller threatens to kill Chloe unless Clark gives her the names and locations of the rest of the Justice League.

Zod continues to pose as "The Blur" and asks Lois to investigate one of Tess' secret labs. An explosion rocks the lab, and Lois is rescued by John Corben who was a subject of multiple experiments. While investigating the explosion, Clark is exposed to red kryptonite. And infected Clark takes Zod to the Fortress. Tess turns to Chloe for help and they send in Corben to stop Clark from revealing all his secrets.

The new editor tells Clark and Lois only one of them 'imps' may keep his/her job. they still collaborate, hoping a super-scoop should change his mind. An apparent opportunity is when Raymond Sacks, fires as D.A. for ordering a failed attempt at Lois's life, is spared prosecution and throws a nightclub celebration. Clark is warned by Chloe the blur's secret is compromised by impostor Zod's contact with Lois. He discovers Maxwell Lord, a wealthy tycoon and Checkmate king-level rogue, enlists Sacks for a plan to identify the Blur, whom a delivery-boy photographed, so he's captured like several people known to have seen him.

Tess's latest intrusion, at Watchtower, and Chloe's excessive lockout mechanism, lock the pair up, likely to be killed while Checkmate breaks trough the last firewalls. Intrudening the Luthor mansion Oliver faces Zod, whose abusive side reemerges, now with superpowers. Clark must save his friends and hopes to do he same for the Kandorians, one of which carries unsuspecting Zod's unborn child, but the all-round secrecy exacts terrible prices.

Clark is desperate to find the Book of Rao before Zod can find it. If it falls into Zod's hands, he will take over Earth. He's asking Chloe for her help. She is hampered by Tess's ravaging of her Watchtower equipment. Lois tells Clark she has a sure-fire way of getting their jobs back, but he is too preoccupied to listen. Her feelings are hurt. She says she needs a mission in life. In the midst of all this, Clark's mom returns unexpectedly with Perry White, whom she has been dating. Lois is smitten with Perry and shows him her hot lead - a photo of the Red/Blue Blur and tales of an alien race that is looking for the Book of Rao. She holds up a picture of it. Perry's jaw drops. He reaches into his briefcase and pulls out a copy of the same symbol. He tells her that they have a shared story. He is investigating an explosion of a secret government complex in the Rocky Mountains but has been blocked by someone with the code name, Red Queen. Meanwhile, Maxwell Lord has imprisoned Tess, demanding that she hand over the Book of Rao. As Chloe tries to help Clark search for the book, the Red Queen locks her computers. At an uncomfortable "family" dinner, Lois informs Clark that she's breaking up with him. Tess awakes from the mind manipulation that Lord has been using on her to get the Book of Rao. She grabs his gun and escapes. She heads home to get Rao from her wine cellar hiding place. But the real Red Queen - Martha Kent - holds her at gunpoint, knowing she would go for Rao when she fled Lord. Tess is forced to hand it over. Perry and Lois's story collapses, but his good word to the Planet editor gets Lois and Clark their desks back. At the Kent farm, Clark tells his mom that he knows now she is the Red Queen. She answers back that she has never stopped trying to protect him. If he uses the knowledge in the Book of Rao to exile all Kryptonians to another plane, it will exile all Kryptonians from Earth, including himself. She hands the Book of Rao to him.

Zod unleashes his army upon the world, forcing Chloe to call in reinforcements from old friends. Zod tells Lois he is The Blur and asks her to steal the Book of Rao from Clark. Torn between Clark and The Blur, Lois asks Clark to come clean with her about everything but he refuses. Chloe and Oliver attempt to reconnect Watchtower's satellite system in order to fight the Kandorians but to Chloe's horror, Oliver gets caught on site and disappears. Tess attempts to stop Zod but he leaves her clinging to life. Clark and Zod battle for control of Earth.

Oliver is tortured incessantly by Rick Flag until Chloe, who used the Dr. Fate's helmet to find him, exchanges herself for him. Awakening in a secret LuthorCorp lab among partial Lex clones, Tess meets young Alexander before the bloodthirsty, dying senior knocks her down and uses Lois, who enabled Clark's healing by removing the fatal blue kryptonite, to set a sadistic trap. Despite his success, Clark lets his confidence be undermined by Jor-El in the ice fortress, but reconsiders after a pep-talk from Jonathan.

Oliver tracks down his tormentor Rick Flag, learns he exchanged him for Chloe, who died poisoned, and informs Clark, who helps him work out Chloe actually staged her fake death. On her Daily Planet assignment in Egypt, Lois meets archaeologist Carter Hall ans soon suspects his story about a reincarnated Pharaonic prince is autobiographic. Clark dislikes her staff replacement Cat Grant, but saves her from never identified, yet infallible assassin Deadshot and learns he was the actual target, actually hired by Flag, knowing Superman's weakness is his noble need to protect.

Radio personality Gordon Godfrey becomes possessed by the dark force that Clark was warned about. Godfrey begins waging a crusade against all super-heroes as part of a promotional tour for his anti-vigilante book. Clark is standing on the fringe of a rally when Lois returns to give him a big hug. As they talk, a billboard falls toward the crowd. Clark rushes to catch it before it crushes the crowd. He is not needed. A very visible Kara (dressed in her Supergirl outfit) catches it. She has come back to Earth to tells Clark that Jor-El has sent her to take care of the evil that is coming. Jor-El is sure that the doubt in Clark's heart will allow the dark force to possess him and use Clark's powers as the ultimate weapon. Clark is reluctant to give up on what he views as his own mission. In an attempt to push himself further along, he asks Kara to give him flying lessons. He tries to launch himself from the top of the windmill. It works momentarily, until he then plummets to the ground through the barn roof. Lois learns that Godfrey is planning to reveal Green Arrow's identity online when he posts the final chapter of his book. This will create doubt all over the world about the super-heroes so that he can manipulate them down a new path. Clark and Kara confront Godfrey at a seedy nightclub. Kara's Kryptonian bracelet exorcises the entity from Godfrey. Lois rushes to tell Oliver about the big reveal that is scheduled. It is unnecessary. Oliver has Oliver decided it is best everyone knows the truth. He has scheduled a press conference and announces his identity as Green Arrow.

Still gravely pondering his place in life, Clark lets Lois drag him along to their Smallvillle high school reunion. Rather than enjoying his hero status, while Lois shines less than she expected, Clark worries when he spots Brainiac, but it turns out he returned from the future with the Legions ring to show Clark how vital his contribution is to prevent a horrible future for him, Oliver, their friends and the world.

Oliver enjoys his new, public role since he outed himself as super-hero, yet misses Chloe desperately and feeling guilty. His example further inspires Clark to tell at least Lois, but just when they meet to that end an Egyptian jewel allows the Pharaonic goddess Isis to take possession of her body, eager to resuscitate her beloved Osiris, all required being at hand from a major exposition in Metropolis, but that would also revive his realm, hell, on earth. Tess, who is otherwise preoccupied with Lex's boy-clone Alexander, joins Oliver and Clark at Watchtower, where she proves herself able to fill in for Chloe IT-wise. Even with that invaluable research, Clark nearly perishes in his supernatural duel with Isis. Cat get caught in the fight and mistakenly believes Lois is the evil Blur.

Clark examines a rural hamlet where blue kryptonite in the water has no known negative effects. However when a bell rings, tho local deputy regretfully knocks out the nosy reporter 'at the wrong time and place'. Lois has a car crash nearby and is nursed by an Amish family. Yet when she wants to leave, she discovers their chilling true intention, as the extremely aberrant sect does with one female every year. In the Luthor mansion, Alexander insists to be called Lex and his aging condition requires 'regular' birthday parties. Mercer's plan to give him a cure if the original lex's research allows so is reconsidered as she realizes this clone may be too perfect.

Clark is far from impressed that Lois barely dares rebuke her kid sister's mean pranks on both of them, while squirming for each, even offensive, whim of Pa, full general Sam Lane, as their Thanksgiving guest. Clark firmly but politely hosts the Lanes, while reasoning against the general's support for a bill to make 'registration' compulsory for superheroes, an obvious trap given the congressional supporters' antecedents. While Oliver investigates them, Clark saves everybody from proponent Rick Flag's Machiavellian rocket attempt on the general's life. Only when Lois finally sides with Clark against Pa, he reveal his ulterior motive for exaggerated rudeness.

Clark accompanies Tess, who got childhood nightmares triggered by a mysteriously delivered music-box, to the orphanage where she was left behind by her parents. They find out the hard way 'Granny', who runs it, far from her philanthropic image, in fact ruthlessly rules a brain-washed power girls ring. The general finally sent Lois the video made by her late mother when dying from cancer. Dealing with painful and sweet memories, she ends up digging in Clark's Kryptonian parental antecedents in the fortress.

Oliver tests the Vigilante Registration Act by outing himself at a press conference, praised by the general in charge. As feared, he's tortured in a secret prison to turn on his superhero friends. Tess helps work out the design from Luthor plans for an underwater top-security facility, build in sixfold. Aquaman 'A.C.' Arthur Curry and his new wife Mera discover and penetrate the one Oliver is held in, but the general rather starts auto-destruct. Clark remains cautious and flashes to the rescue but has to deal with a specific counter-measure.

Tess acquires a Kryptonian box that once belonged to Lionel Luthor. When Clark accidentally activates the box, he's transported to a parallel universe where Lionel found Clark in the cornfields instead of the Kents. In this universe, Clark Luthor is a murderer and Lois is engaged to Oliver and both of them hate Clark. Clark must be careful not to tip off Lionel that he's not his son while trying to figure out how to get back to Earth where the monster Clark Luthor was transported in his place.

As the VRA threat intensifies, Clark takes initiative by closing down watchtower and declaring the League go officially underground, but will this be enough to stop Lt.Trotter and Slade Wilson aka Deathstroke from exposing them? Tensions rise in this mid-season finale.

Clark, Oliver, Lois and Dinah are back home after long VRA captivity, with confused memories and robbed of all superhero-powers. They believe they have been tortured in an experimental lab by none other than Chloe, hence fear she switched sides. Then she, or rather her avatar, appears in dreams to each of them, claiming they only lost their powers in a virtual illusion, which can nevertheless kill them for real. She calls upon them to trust her, break the virtual spell by believing it fake and thus escape back into reality, with Rick Flag's team. Oliver does so quickly, and is reunited with his true love. Clark wants to, but finds it extremely hard, until Lois joins in.

Clark is surprised to see Martha on the news speaking at a pro-vigilante rally. However, surprise quickly turns to horror when he and Lois watch as Martha is injured in an attack on national television. Meanwhile, Lionel reveals himself to the world and reclaims LuthorCorp from Tess and Oliver. Lois and Chloe decide to cheer Clark up by showing him videos from thousands of vigilante supporters professing their support for The Blur.

Chloe and Oliver are mistaken for FBI agents investigating Desaad's recent string of murders and the pair are kidnapped by Desaad's minions. Desaad tries to infect Chloe with the darkness. Meanwhile, Lois tells Clark he needs to be more careful with his identity and suggests a disguise.

After Zatanna sends a magically spiked bottle of champagne to Clark and Lois for their bachelor/bachlorette parties, the gang blacks out after the toast, only to wake up the next morning and realize they can't remember anything about the night before. While trying to retrace their steps, Lois realizes she lost her engagement ring and drags Oliver back to the Fortune Casino where she thinks she lost it. The two run into Fortune, the eccentric casino owner, who accuses them of stealing money from him. Meanwhile, Clark tells Chloe he has a memory of stealing an armored truck the night before.

Lionel and Tess go head to head in a battle for the Luthor name. Clark and Lois are stunned by Tess' latest present to them.

Clark Kent is in nostalgic mood after Martha signs over the deed to the farm as a wedding present, wondering whether it suggests he and Lois should sell and move. Clark Luthor surprises him, using the mirror box and shattering it after having sent Kent to his world, then fool everyone for a while, in search of bloody vengeance on at least one Luthor. Kent finds himself, public enemy number one against whom everyone caries green kryptonite, at Oliver's funeral, where a bitter Jonathan scolds the 'scrooge'. Recognized and helped by the other Lois, he seeks to appease hatred and find a way back. Dr. Emil Hamilton frantically tries to repair the mirror-box, just in time.

Clark gets an inverse make-over from Lois, in order to become a gray mouse when the Blur goes public. Just then, a flashy media-hungry new superhero emerges: Booster Gold, who systematically steals the show. Clark discovers Booster came from the future with a Legionnaire's ring, probably stolen. Generally bullied, shy schoolboy Jaime Reyes is inadvertently infected with the alien scarab which Booster was hired to retrieve for industrialist Ted Kord, hence transformed into the Blue Beetle, an uncontrollable monster. Clark could just expose Booster as a fake coward, but chooses to educate him in superhero ethics.

After the banished General Slade is found on earth, Clark realizes the Phantom Zone portal must be open and decides to go close it, however dangerous as his super powers don't work there. Oliver was denied coming along but managed by surprise. The heroes find the zone under the rule of General Zod, who looks forward to his revenge for both worlds on Clark and was promised full dominion by Darkseid if he eliminates the great Kryponian adversary. So Clark is forced to enter Zod's arena's mortal gladiator combat, while Oliver is offered an alternative and reminded of being Omega-branded already, which no earthling knows yet. In the Watch Tower, Lois discovers the three hours portal destruction 'safeguard' Clark ordered Tess to trigger and fights it.

Searching for the Bow of Orion, the only known means to stop the Darkness, Oliver and Kara independently reached the same booby-trapped underground sanctuary. Kara got herself trapped, but Oliver rescues her in Indiana Jones style. Together they decipher and follow the clues to the bow, only to be get a bitter surprise. Meanwhile instead of giving his blessing in the fortress, Jor-El temporarily transfers Clark's super-powers to his already far too cocky bride.

The story of Clark Kent culminates in this two-hour series finale as Clark takes the last step to becoming the Man of Steel.

While working in the night shift at the Daily Planet, Chloe receives a distressed phone call from a woman claiming that she is in danger. Chloe and Lois schedule a meeting with the woman, but a car runs over her and the cousins witness the murder. Meanwhile, the close friend of Jonathan, Senator Jack Jennings, visits the farm to rest from his campaign for the senate against Lex Luthor. Jonathan is surprised by the visit of Detective Maggie Sawyer, who is investigating the death of the nineteen-year-old stripper that Chloe and Lois witnessed last night. She found a picture of Senator Jennings with the girl and is following the lead. Clark believes Lex is involved with the crime, but Lex helps him in the investigation. Lois decides to go undercover by working at the nightclub as a stripper to investigate the murder. When Lois meets the criminal, she is abducted and her life is in danger.

Chloe and Lois are attacked by two thugs which one of them is hit by Lois with her heel, she starts feeling a bit heroine about it so she recruits Jimmy for the picture so she can convince the people she is Metropolis' new hero, with the name of 'Stiletto', so she can take away the famous red and blue blur. However, Lois may end having contact with this red and blue blur when Clark wants to try to track down the mysterious 'Stiletto'. While Clark tries to help Chloe recover her stolen laptop computer with all of the Justice League's files on it, she continues to hide Davis in the basement of The Talon. Elsewhere, Jimmy is working as a bartender at a nightclub where the thugs who robbed Chloe and Lois reside and are plotting to kill Stiletto to reclaim the city for themselves.

After Jimmy and Chloe disappear from sight for a bit and it turns out it has been against their will, Lois and Clark pose as a couple to flush out the kidnapper.

Linda Lake comes back to Smallville and blackmails Clark to expose his true identity. However, Clark decides he will reveal his secret by himself. A fanatic teenager fakes a fall so Clark can save her.

Superhero twins Zan and Jayna (aka: the Wonder Twins) show up in Metropolis to help 'The Blur' fight crime with their combined shape-changing abilities. But the clumsy and naive teenagers end up botching several rescues, landing Clark in hot water with the District Attorney's office. Clark decides to come forward as The Blur to clear his name despite Chloe's protests. Meanwhile, Lois begins seeing a therapist to deal with her growing romantic feelings for Clark, and gets dangerously close to discovering his secret identity.

Lex has been secretly trying to turn Wes Keenan, a military man who supposedly died fighting in Afghanistan, into a "super soldier" by injecting him with DNA pulled from the various meteor freaks he has captured. After a crooked senator, Ed Burke, who has been financing the 'Project 33.1', threatens to expose Lex's secret labs, he dispatches Wes to kill the senator. But Lois witnesses the attack and inadvertently becomes the super soldier's next target. Meanwhile, Clark tries to convince Lana to leave Lex, but she refuses and Clark becomes more suspicious about Lionel's involvement with Lana's motivation. Following Senator Burke's murder, Martha is asked to be his replacement in Washington D.C. which means leaving Smallville (and Clark) behind.

When Jason arrives at Lana's apartment at The Talon, they see that is was broken into and wrecked. They discover that the magical stone they took from the Chinese temple is gone. Lana implores Jason to leave it, and concentrate on their romantic relationship instead. But the two meet at Lionel's office, who strongly denies any knowledge of the theft and accuses his son Lex, who makes another innocence-claimant. Meanwhile, the Kent farm gets an uninvited guest's guest: Lois Lane's younger sister Lucy, a violinist who left her fancy Swiss boarding school. The Lane girls start hanging out at Clark's place and at The Talon, where Clark catches Lucy stealing from the till; she says to be in debt with Swiss loan shark Marcus Becker "to afford the lifestyle" of the spoiled brats in her class. Lex knows Becker as member of a major crime syndicate he has business problems with, and offers to help. Becker isn't content to take Lex' money, he kidnaps the sisters to extort more, Clark decides it's time to use his superpowers.

Tess kidnaps Lois to find out where Lois went after she disappeared for weeks. Lois's memory of the future depicts a Metropolis under Zod's rule and Clark powerless under the red sun, while Chloe forms a resistance group with Oliver. After learning of these future events, Clark makes an important decision about Zod.

Clark examines a rural hamlet where blue kryptonite in the water has no known negative effects. However when a bell rings, tho local deputy regretfully knocks out the nosy reporter 'at the wrong time and place'. Lois has a car crash nearby and is nursed by an Amish family. Yet when she wants to leave, she discovers their chilling true intention, as the extremely aberrant sect does with one female every year. In the Luthor mansion, Alexander insists to be called Lex and his aging condition requires 'regular' birthday parties. Mercer's plan to give him a cure if the original lex's research allows so is reconsidered as she realizes this clone may be too perfect.

Clark once again becomes "under the influence" of red kryptonite, and will say his true feelings on such things as Lionel and Martha's relationship, and Lana's pregnancy, but there may be someone else that will get affected by the red k.