45 1 "Exile" Greg Beeman Alfred Gough & Miles Millar October 1, 2003 176201 6.80[4]
Under the influence of red kryptonite, and living in Metropolis, Clark gets involved with a crime lord named Morgan Edge who hires him to break into LuthorCorp. Desperate to put his family back together, Jonathan makes a deal with Jor-El so that he can bring Clark home. Lex is stranded on a deserted island, with the world believing him to be dead. At the mansion, Lionel accuses Helen, revealed to be alive, of killing Lex.
46 2 "Phoenix" James Marshall Kelly Souders & Brian Peterson October 8, 2003 176202 6.70[4]
Jor-El grants Jonathan temporary superpowers, and he and Clark engage in a destructive battle below the LuthorCorp building. Clark, unable to kill his father, destroys the red kryptonite. Lex returns home to the shock of Helen. He quickly learns that Helen attempted to kill him, and takes measures to ensure that doesn't happen again. Morgan Edge finds Clark and kidnaps him in an effort to make amends to Lionel.
47 3 "Extinction" Michael Katleman Todd Slavkin & Darren Swimmer October 15, 2003 176203 6.50[4]
Clark discovers Van McNulty has been killing green meteor rock-infected people. When he confronts him, the green kryptonite rock Van is carrying stops him. Knowing Clark's weakness, Van manufactures meteor rock bullets, and almost kills Clark. Using Lana as bait, Van tries to increase his efforts, but both Lana and Clark prove to be too much for him to handle.
48 4 "Slumber" Daniel Attias Drew Z. Greenberg October 22, 2003 176204 6.90[4]
A comatose girl, Sarah Conroy, has the ability to pull Clark into her dreams, and does so without warning. Clark and Lana visit her, and grow suspicious of her uncle when they learn of Sarah's inheritance that he oversees. They discover the uncle has been drugging her to keep her in a coma. When Nicholas Conroy finds out, he tries to kill Lana, but Clark arrives in time to stop him.
49 5 "Perry" Jeannot Szwarc Mark Verheiden October 29, 2003 176205 6.70[4]
Clark discovers his abilities are derived from the Sun, when an increase in solar flares cause his powers to either flare up, or give out completely. Perry White, a once promising journalist, arrives in Smallville in search of stories for a tabloid news show. Despite being constantly inebriated, Perry believes he witnessed Clark using superhuman abilities, and devises a dangerous scheme to expose the truth.
50 6 "Relic" Marita Grabiak Kelly Souders & Brian Peterson November 5, 2003 176206 6.70[4]
Lana's great uncle, who was convicted of murdering his wife forty years prior, shows her a picture of a drifter he believes really killed her aunt. The drifter looks just like Clark. Positive that the man is Jor-El, Clark's investigation leads him to a Kryptonian medallion that allows him to see moments of the past, and also lets him see how human Jor-El was when he first came to Earth.
51 7 "Magnetic" David Jackson Holly Harold November 12, 2003 176207 6.90[4]
When Lana starts seeing a new guy, and begins acting out of character, Clark investigates. Clark's suspicions are confirmed when he discovers Lana's new boyfriend has magnetic powers that can move objects and alter human emotions. When he tries to free Lana from the magnetic hold, she tries to kill Clark. Lex discovers Chloe has been digging into Lionel's past and tries to get her to join him in his fight against his father.
52 8 "Shattered" Ken Biller Ken Biller November 19, 2003 176208 6.40[4]
Lex locates Morgan Edge and gets him to admit that he helped Lionel murder his parents. Before Lex can take it to the authorities, someone tries to kill him. Lex flees and asks Clark for help. Evidence begins to amount that suggests Lex has had a psychotic break. Lex watches Clark slam into Edge's car, after Clark pushes him out of harm's way. Lex's doctors arrive and take him to Belle Reve sanitarium.
53 9 "Asylum" Greg Beeman Todd Slavkin & Darren Swimmer January 14, 2004 176209 5.60[4]
Lex attempts to convince Clark to help him escape, but when Clark refuses, he attempts to escape by himself. His resulting capture forces Lionel to send him in for electroshock therapy to erase his memory. Ian Randall, Eric Summers, and Van McNulty band together in an attempt to steal Clark's powers and escape. Lana, at the hospital after a near fatal accident caused by Lex, meets another patient, Adam Knight, who pushes her to fight the pain and finish her rehab.
54 10 "Whisper" Tom Wright Ken Horton January 21, 2004 176210 5.10[4]
Attempting to stop a robbery, Clark is temporarily blinded when he shoots off a burst of heat vision that is reflected back into his eyes by a piece of green kryptonite. He soon realizes that his body has developed super-hearing to compensate for his lack of sight. Pete is kidnapped by one of the thieves, in an attempt to blackmail the judge, Pete's mom, into dismissing the charges against his partner. Clark tries to gain control over his hearing so that he can find Pete.
55 11 "Delete" Pat Williams Kelly Souders & Brian Peterson January 28, 2004 176211 5.50[4]
When Chloe uncovers a secret experiment at Summerholt Institute, someone begins sending mind-controlling emails to her friends with orders to kill her. Clark and Lex discover the person responsible, Molly Griggs, but cannot tie her to Dr. Garner. Lana decides to rent the apartment above the café to Adam, even though she feels he is hiding something dangerous about his past.
56 12 "Hereafter" Greg Beeman & James Marshall Mark Verheiden & Drew Greenberg February 4, 2004 176212 5.30[4]
Clark learns his schoolmate Jordan can foresee the future death of anyone he touches. Jordan warns him that Lana is going to die in a fire in the next few days. Clark sets out to prevent Lana's death. Jordan also tells him that he didn't see a death in Clark's future. Chloe, suspicious of Adam, begins investigating him, and uncovers disturbing news.
57 13 "Velocity" Jeannot Szwarc Todd Slavkin & Darren Swimmer February 11, 2004 176213 5.00[4]
Pete begins street racing with kryptonite-infused cars. When he refuses to throw a race, the people in charge threaten to kill him. He asks Clark to use his powers to help him. Pete challenges the leader to a race, but when Clark overhears their plan to blow up Pete's car, he tries to stop the race. Meanwhile, Jonathan begins to show the effects of his deal with Jor-El.
58 14 "Obsession" James Marshall Holly Harold February 18, 2004 176214 5.33[5]
When Clark is forced to use his powers in front of another student, Alicia Baker, he is surprised to find out she has powers of her own. The two develop a bond through their shared secret, but things change when Alicia becomes obsessive about sharing Clark with anyone else – especially Lana. Lana, fearing for her own safety, asks Lex to get rid of Adam.
59 15 "Resurrection" Terrence O'Hara Todd Slavkin & Darren Swimmer February 25, 2004 176215 4.97[6]
While his father awaits surgery, Clark befriends a teenage boy, Garrett, whose brother Vince just died from liver failure. Everyone is shocked when Vince shows up at the Kents' alive. When his liver starts failing again, Garrett straps a kryptonite bomb to himself and demands that Vince be given Jonathan's liver or he will blow up the building. Clark learns that Lionel has been using a sample of his blood to bring the dead back to life.
60 16 "Crisis" Ken Biller Kelly Souders & Brian Peterson March 3, 2004 176216 5.26[7]
Clark receives a panicked call from Lana and hears a gunshot before the line goes dead, but when he arrives at the Talon he discovers she is alive and well. Clark, Chloe and Lana realize the phone call came from one day into the future, and that Adam is the one who will shoot Lana. When Lex takes Clark to the Luthorcorp lab where Adam is being kept, he finds all of the staff murdered, and Adam missing.
61 17 "Legacy" Greg Beeman Jeph Loeb April 14, 2004 176217 4.48[8]
Clark begins to suspect that Jor-El is sending Jonathan messages through the key, and that he is the cause for his father's withdrawal from the family. Clark goes down to the caves to confront his biological father. Lana gives support and comfort to Clark, which leads to a kiss. Lana talks to Lex about losing faith in Clark and he gives questionable advice. Lionel catches him there and begins putting the pieces together, which leads him to Dr. Swann. A deal is struck, and Lionel's true motives are revealed.
62 18 "Truth" James Marshall Drew Greenberg April 21, 2004 176218 4.43[9]
When Chloe accidentally inhales a mysterious kryptonite-gas, she discovers it acts as a truth serum to anyone who comes in contact with her. She decides to take advantage of her new power by attempting to uncover Clark's secret. However, her new power comes with fatal consequences. Clark sets out to find an antidote before Chloe can discover the truth about him, rescuing her just when she's about to die.
63 19 "Memoria" Miles Millar Alfred Gough & Miles Millar April 28, 2004 176219 4.32[10]
Believing that key information about his father's past was lost when his memory was erased, Lex decides to join an experimental program with Dr. Garner to regain his memory. Knowing that Lex will discover his secret if he regains his memory, Clark tries to stop him, but is caught by Lionel and Garner so that they can experiment on him. Through the experiment, Clark learns about his birth mother.
64 20 "Talisman" John Schneider Ken Biller May 5, 2004 176220 4.72[11]
When a Kawatche Indian, Jeremiah Holdsclaw, steals a mythic knife from the caves, he is bestowed with superpowers similar to Clark's. Believing he is the true Naman, he sets out to find and kill Lionel. Lionel attempts to find the knife, while Clark learns that it will crumble if the real Segeth touches it. Clark tries to find Jeremiah before he can kill Lionel.
65 21 "Forsaken" Terrence O'Hara Kelly Souders & Brian Peterson May 12, 2004 176221 4.54[12]
After learning that Lana is leaving Smallville, Clark dec