Everyone has a future. Clark Kent has a destiny-if he's willing to accept and able to master all the awesome powers and responsibilities that come with it. In an event-packed third season, the fascinating reinterpretation of the Superman mythology and its classic characters continues...
Under the influence of red kryptonite and living in Metropolis, Clark (Tom Welling) gets involved with a crime lord named Morgan Edge (guest star Rutger Hauer) who hires him to break into LuthorCorp. Meanwhile, desperate to put his family back together, Jonathan takes drastic measures to bring Clark home. At the mansion, Lionel (John Glover) accuses Helen (Emmanuelle Vaugier) of killing Lex (Michael Rosenbaum).
After Jor-El grants Jonathan (John Schneider) temporary superpowers, he and Clark (Tom Welling) engage in a destructive battle atop the LuthorCorp building. Meanwhile, Lex (Michael Rosenbaum) returns home and must determine whether it was Lionel (John Glover) or Helen (Emmanuelle Vaugier) who arranged his plane crash.
Clark (Tom Welling) discovers someone is hunting people affected by the kryptonite rocks and the killer's next target is Lex (Michael Rosenbaum). Clark uses his powers to save Lex, but is caught off guard when the killer learns his weakness and shoots him with a kryptonite bullet.
Clark (Tom Welling) dreams he is being pursued by a frightened young girl who needs his help. However, after he discovers she is actually a comatose neighbor who should have woken up years ago, he enlists Lana's (Kristin Kreuk) help to uncover the truth - which puts Lana in grave danger. Meanwhile, Lionel (John Glover) demands that Lex (Michael Rosenbaum) undergo a full psychological evaluation before he hires him.
Perry White (guest star Michael McKean, A Mighty Wind, Best in Show), a once- promising journalist whose career was destroyed by Lionel Luthor (John Glover), arrives in Smallville in search of alien stories for a tabloid news show. In spite of being constantly inebriated, Perry believes he has witnessed Clark (Tom Welling) using his extraordinary speed, so he devises a dangerous scheme to expose Clark's superpowers. Meanwhile, Lex (Michael Rosenbaum) learns that Perry has powerful incriminating evidence of Lionel's shady past.
Clark discovers that Jor-El was on Earth forty years ago. Lana's great uncle, who was convicted of murdering his wife forty years ago, shows her a picture of the man he believes really killed her aunt, and she is shocked to discover the drifter looks just like Clark. Sure that the man is Jor-El, Clark's investigation leads him to a kryptonian medallion that allows him to see bits of the past – and the life that Jor-El started for him long before he arrived on Earth.
Kevin Zegers) and begins to act rebelliously, which eventually lands her in jail. Clark's suspicions are confirmed when he discovers Lana's new boyfriend has magnetic powers that can move objects and alter human emotions, but when he tries to free Lana from the paranormal hold that is controlling her, she tries to kill him. Meanwhile, Lex (Michael Rosenbaum) discovers Chloe (Allison Mack) has been delving into Lionel's (John Glover) past and tries to get her to join forces against his dad.
Lex (Michael Rosenbaum) locates Morgan Edge (Patrick Bergin, Sleeping With the Enemy) and gets him to admit to dirty dealings with Lionel (John Glover), but before Lex can take it to the authorities, someone tries to kill him at the mansion. Barely surviving, Lex flees and asks Clark (Tom Welling) for help. However, when Clark returns to the mansion to investigate he finds nothing amiss, and begins to wonder if it really happened, especially after Lionel announces Lex has had a psychotic break and must be institutionalized.
Lex (Michael Rosenbaum) teams up with three krypto-villains to lure Clark (Tom Welling) to the hospital to enlist his help in escaping after he hears that Lionel (John Glover) has requested Lex be given electroshock therapy to erase his memory. However, the plan goes awry when the villains double-cross Lex and use kryptonite to steal Clark's powers. Meanwhile, Lana (Kristin Kreuk) meets a mysterious new stranger (Ian Somerhalder, Rules of Attraction) in the hospital.
Attempting to stop a robbery, Clark (Tom Welling) is temporarily blinded when he shoots off a burst of heat vision that is reflected back into his eyes by a piece of kryptonite. He soon realizes that his body has developed super-hearing to compensate for his lack of sight. However, as it was in the beginning with his other gifts, Clark doesn't quite have his new power under control.
Clark (Tom Welling) and Lana (Kristin Kreuk) each make an attempt on Chloe's (Allison Mack) life for unknown reasons after they receive a mysterious e-mail from the Sommerholt Institute. Clark must discover the source of these e-mails after Chloe reveals she has uncovered proof that they are doing mind-control research at the lab and realizes they must be trying to kill her in order to prevent her from writing an expose. Meanwhile, Lana decides to rent the apartment above the cafÃ© to Adam (guest star Ian Somerhalder) even though she feels he is hiding something dangerous about his past.
Clark (Tom Welling) discovers that his schoolmate Jordan (guest-star Joseph Cross) can foresee the future, but is horrified when Jordan tells him he "sees" Lana (Kristin Kreuk) dying in a fire in the next few days. Meanwhile, suspicious of his behavior, Chloe (Allison Mack) investigates Adam's background and discovers some disturbing news.
After Pete (Sam Jones III) purposely blows a street race, the thugs that run it threaten his life, so he asks Clark (Tom Welling) to use his powers to stop them. Furious that Pete would put himself in this position, Clark must figure out a way to save Pete and still protect his secret. Meanwhile, Jonathan (John Schneider) begins to suffer the consequences of his deal with Jor-El.
Clark (Tom Welling) is forced to use his powers in front of Alicia (Sarah Carter, Black Sash), a new girl at school, but he is surprised to find out she has powers of her own. The two develop a bond through their shared secret, but things turn ugly after Alicia becomes obsessive about sharing Clark with anyone else - especially Lana (Kristin Kreuk). Meanwhile, Lana asks Lex (Michael Rosenbaum) to investigate Adam (guest star Ian Somerhalder).
While his father (John Schneider) is awaiting surgery, Clark (Tom Welling) befriends a young boy, Garrett (guest star James Kirk), whose brother Vince (guest star Tahmoh Penikett) just died from liver failure. However, everyone is shocked when Vince shows up at the hospital alive and seemingly well - until his liver starts failing again. In a desperate attempt to keep his brother alive, Garrett straps a Kryptonite bomb to himself and demands that Vince be given Jonathan's liver or he will blow up the building.
Clark (Tom Welling) receives a panicked call from Lana (Kristin Kreuk) and hears a gunshot before the line goes dead, but when he arrives at the Talon he is stunned to discover she is alive and well. Clark realizes the phone call came from the next day and that Adam (guest star Ian Somerhalder) is the one who will shoot Lana. Upon taking Clark to the Luthorcorp lab where Adam was being kept, Lex (Michael Rosenbaum) finds all of the staff murdered and suspects his father (John Glover) is behind it.
When Jonathan (John Schneider) begins to act strangely, Clark (Tom Welling) believes Jor-El is sending Jonathan messages through the key and is the cause for his father's withdrawal from the family. Clark goes down to the caves to confront his biological father but Lionel (John Glover) catches him there and begins putting the pieces together - leading him straight to Dr. Swann (guest star Christopher Reeve). As the two billionaires face off, a deal is struck and Lionel's true motives are revealed.
When Chloe (Allison Mack) accidentally inhales a mysterious krypto-gas, she discovers it acts as a truth serum to anyone who comes in contact with her and decides to take advantage of her new power by going to the Kents (John Schneider, Annette O'Toole) to find out Clark's (Tom Welling) secret. However, her new power comes with fatal consequences and Clark must find an antidote before she discovers the truth about him or worse, dies.
Believing that key information about his father's (John Glover) past was lost when his memory was erased, Lex (Michael Rosenbaum) decides to join an experimental program with Dr. Garner (guest star Martin Cummins) to regain the information so he can turn his father over to the FBI. Knowing that Lex will discover his secret if he regains his memory, Clark (Tom Welling) tries to stop him but is caught by Lionel and the doctor and exposed to the same radical treatment so that Lionel can solve the mystery of Clark's past.
When a Kiwatche Indian (guest star Nathaniel Arcand, The Lone Ranger) steals a mythic knife from the caves, he is bestowed with superpowers similar to Clark's (Tom Welling), causing the young man to believe he is the legendary Naman, "the man who fell from the stars." Clark learns the Kiwatche legend foretold of a knife that could kill Naman and sets out to reclaim it before the young Indian can use it on Lionel (John Glover).
Clark (Tom Welling) decides to tell Lana (Kristin Kreuk) his secret so they can finally be together. Meanwhile, an errant FBI agent (guest star Gary Hudson) kidnaps and tortures Pete (Sam Jones III) to try and force him to reveal Clark's secret. Also, Lex (Michael Rosenbaum) panics after the FBI gives him 24 hours to turn over information on his father (John Glover) or face jail time, but help arrives from an unexpected source.
Things come to a head in Smallville when Kara, a beautiful girl (guest star Adrianne Palicki) with superpowers, who claims to be from Krypton, comes to entice Clark (Tom Welling) to fulfill his destiny. Overwhelmed by her appearance, Clark turns to his parents (John Schneider, Annette O'Toole) for advice but is shocked when the girl forces Jonathan to finally reveal the deal he made with Jor-El. Also, Clark makes a discovery that ultimately redefines his relationship with Lex (Michael Rosenbaum), and Clark's relationship with Lana (Kristin Kreuk) takes a final turn. Meanwhile, Lex turns the tables on Lionel (John Glover) with the FBI.