Vortex:
2-1
Original Airdate: September 24, 2002

After Clark (Tom Welling) rescues Lana (Kristin Kreuk) from the eye of the storm, he discovers the storm's wrath has unleashed the spaceship into the fields and buried his father (John Schneider) alive along with the unscrupulous reporter (guest star Tom O'Brien) who has discovered Clark's secret. Meanwhile, Lex (Michael Rosenbaum) is wracked with guilt over his father (John Glover).


Heat:
2-2
Original Airdate: October 1, 2002

Clark (Tom Welling) goes into hiding after he discovers a startling new power that quickly gets out of control and accidentally harms Lana (Kristin Kreuk). However, after a hot new teacher (guest star Krista Allen) uses kryptonite-enhanced pheromones to convince Lex (Michael Rosenbaum) to marry her, then spellbinds Jonathan (John Schneider), Clark must get a grip on his new power in time to keep Jonathan from killing Lex.


Duplicity:
2-3
Original Airdate: October 8, 2002

After one of Clark's (Tom Welling) friends discover the spaceship in the cornfield, Clark goes against his parents' (John Schneider, Annette O'Toole) wishes and reveals his secret, but is shocked when the reaction he gets makes him question his friend's loyalty.


Red:
2-4
Original Airdate: October 15, 2002

The school unknowingly uses red kryptonite in the class rings and its effect on Clark (Tom Welling) stuns his friends and family as he turns into a rebellious and dangerous teenager who decides to use his powers for evil instead of good. Jonathan (John Schneider) and Martha (Annette O'Toole) scramble to find the truth behind Clark's behavior before he exposes his true identity, while Lana (Kristin Kreuk) finds herself drawn to the "new" Clark who declares his love for her.


Nocturne:
2-5
Original Airdate: October 22, 2002

Clark (Tom Welling) is concerned when he discovers someone has been leaving love notes for Lana (Kristin Kreuk) at her parents' grave and warns her to stay away from the mysterious poet. Fed up with Clark's over-protectiveness, Lana (Kristin Kreuk) follows the dark and handsome stranger to his home and discovers his parents keep him locked in chains. Unable to leave him like that, Clark and Lana break into the house to save the boy, but soon realize why he was locked up in the first place.


Redux:
2-6
Original Airdate: October 29, 2002

After realizing the farm is in financial trouble, Martha (Annette O'Toole) goes to her estranged father (guest star George Coe) for help. Clark (Tom Welling) is thrilled at the prospect of meeting his grandfather but Jonathan's (John Schneider) refusal to see the man prompts Clark to force a reunion that doesn't go exactly as planned. Meanwhile, Lana (Kristin Kreuk) discovers an old photograph that suggests her father may still be alive.


Lineage:
2-7
Original Airdate: November 5, 2002

A mysterious woman shows up claiming to be Clark's (Tom Welling) mother, prompting the Kents (John Schneider, Annette O'Toole) to tell Clark what happened after they discovered him in the cornfield that fateful day. Clark discovers why his father hates the Luthors (John Glover, Michael Rosenbaum), how his adoption was fixed, and who really rescued Lex from the edge of death.


Ryan:
2-8
Original Airdate: November 12, 2002

Clark (Tom Welling) pushes his abilities to the limit to save his telepathic young friend Ryan (guest Ryan Kelley) from an evil doctor who wants to control the boy's abilities. Meanwhile, Nell (guest star Sarah-Jane Redmond) tells Lana (Kristin Kreuk) they are moving to Metropolis.


Dichotic:
2-9
Original Airdate: November 19, 2002

When Clark (Tom Welling) tries to warn Lana (Kristin Kreuk) and Chloe (Allison Mack) about Ian (guest star Thomas), an overachieving student who is surreptitiously dating both girls, they accuse Clark of jealousy but realize too late that he was right. Meanwhile, frustration with his father (John Glover) causes Lex (Michael Rosenbaum) to lose his temper and attack a parking attendant's car with a golf club, landing him in an anger management class where he meets an interesting new woman.


Skinwalkers:
2-10
Original Airdate: November 26, 2002

While moto-crossing with Pete (Sam Jones III), Clark (Tom Welling) falls into a cave and discovers two hidden treasures - ancient Indian writings that hold the key to his identity, and a beautiful girl whom he believes to be his soulmate. Desperate to preserve the writings, Clark pits father against son as he enlists Lex's (Michael Rosenbaum) help to stop Lionel's (John Glover) construction crew from demolishing the cave.


Visage:
2-11
Original Airdate: January 14, 2003

Whitney (Eric Johnson) returns home from the Marines looking to rekindle his relationship with Lana (Kristin Kreuk) but his suspicious behavior prompts Clark (Tom Welling) to question his true motives, ultimately revealing a shocking truth about "the new Whitney." Lex (Michael Rosenbaum) becomes suspicious of his new girlfriend (guest star Emmanuelle Vaugier, My Guide to Becoming a Rockstar) after he discovers a questionable photo of her with Lionel (John Glover).


Insurgence:
2-12
Original Airdate: January 21, 2003

After Lex (Michael Rosenbaum) discovers that Lionel (John Glover) installed cameras in the mansion, he hires some thugs to bug Lionel's office, but things get out of control when Lionel and Martha (Annette O'Toole) surprise the thugs and are taken hostage. Clark (Tom Welling) must figure out a way to save his mother without exposing his powers and sees his chance on an adjacent tall building - if only he could make the leap in a single bound.


Suspect:
2-13
Original Airdate: January 28, 2003

When Lionel (John Glover) is shot, Jonathan (John Schneider) is arrested, but after Clark (Tom Welling) and Pete (Sam Jones III) perform their own crime scene investigation, they realize that more than one person had the opportunity to kill Lionel - including Lex (Michael Rosenbaum). Meanwhile, Lana (Kristin Kreuk) is suspicious after she asks her father (guest star Patrick Cassidy) to take on Jonathan's case and he declines for mysterious reasons.


Rush:
2-14
Original Airdate: February 4, 2003

After Pete (Sam Jones III) and Chloe (Allison Mack) are infected by a parasitic worm, it turns them into thrill-seeking daredevils and Pete uses red kryptonite to get Clark (Tom Welling) to join them on a dangerous adventure. Not only does Clark show off his powers, but he kisses Chloe in front of a stunned Lana (Kristin Kreuk).


Prodigal:
2-15
Original Airdate: February 11, 2003

Lex (Michael Rosenbaum) finds Lucas (guest star Paul Wasilewski), the son Lionel (John Glover) gave up for adoption, and brings him home in the hope that the two of them can unite against Lionel. When Lionel's machinations end up putting all three of them in a dangerous situation, Lex is left to wonder whom he can really trust. Meanwhile, Clark (Tom Welling) decides to take a job at the Talon.


Fever:
2-16
Original Airdate: February 18, 2003

Clark (Tom Welling) rushes to find an antidote after Martha (Annette O'Toole) is infected with a toxic virus and falls into a coma, but when Clark also falls ill, it is up to Jonathan to find a cure in time. To further complicate things, Dr. Bryce (guest star Emmanuelle Vaugier) demands an explanation from Jonathan when he refuses to let her treat Clark.


Rosetta:
2-17
Original Airdate: February 25, 2003

Determined to find out where he came from, Clark (Tom Welling) travels to New York to meet Dr. Swann (Reeve), a brilliant scientist who holds a message for Clark from his home planet. Meanwhile Lana (Kristin Kreuk) decides to move out of Chloe's (Allison Mack) house after the two girls get into another argument about Clark.


Visitor:
2-18
Original Airdate: April 15, 2003

After a schoolmate (guest star Jeremy Lelliott) claims to be an alien and seemingly backs it up by using heat vision, Clark (Tom Welling) investigates and begins to believe that the guy is from his planet Krypton. Meanwhile, after Helen (guest star Emmanuel Vaugier) discovers a locked room in the mansion she demands to know what is behind it, forcing Lex (Michael Rosenbaum) to come clean about his investigation of Clark.


Precipice:
2-19
Original Airdate: April 22, 2003

After Lana (Kristin Kreuk) is almost assaulted by a college student (guest star), Clark (Tom Welling) loses control and injures the boy. When the Kents (John Schneider, Annette O'Toole) are sued for punitive damages that could cost them the farm, Clark begins to question his powers while trying to find a way out of the lawsuit. Meanwhile, Helen's (Emmanuelle Vaugier) ex-boyfriend arrives in town intent on winning her back, but when she turns him down, he stabs her, prompting Lex (Michael Rosenbaum) to take the law into his own hands.


Witness:
2-20
Original Airdate: April 29, 2003

Clark (Tom Welling) stumbles upon a robbery of a LuthorCorp truck carrying kryptonite and is stunned to realize he can't stop the thieves because they are as strong as he is. To keep Clark from going to the police, the thugs attack Jonathan (John Schneider) and Martha (Annette O'Toole), leaving Clark feeling powerless and desperate for a way to protect his parents.


Accelerate:
2-21
Original Airdate: May 6, 2003

After Lana (Kristin Kreuk) is visited by the ghost of a childhood friend, she turns to Clark (Tom Welling) for help in uncovering the truth about her new visitor. However, after Clark realizes the little girl is actually a kryptonite-enhanced clone, he rushes to save Lana before the revenge-seeking child harms her. Lex (Michael Rosenbaum) learns that Lionel (John Glover) is funding the krypto-cloning research.


Calling:
2-22
Original Airdate: May 13, 2003

Dr. Walden (guest star Rob Labelle) wakes up from his coma and tells Lex (Michael Rosenbaum) and Lionel (John Glover) that Clark (Tom Welling) is an alien and must be destroyed. Meanwhile, a romantic encounter between Clark and Lana (Kristin Kreuk) hints at a promising future, but after Chloe (Allison Mack) finds out they are together, Lana pulls back.


Exodus:
2-23
Original Airdate: ? (Season finale was at least 4 parts.)

A sense of foreboding surrounds Smallville as Clark (Tom Welling) must choose between staying with Lana (Kristin Kreuk) and his family or fulfilling his destiny to rule the Earth. Meanwhile, Lex (Michael Rosenbaum) and Helen (Emmanuelle Vaugier) plan their upcoming wedding, but outside forces may ultimately keep them apart. Also, a hurt Chloe (Allison Mack) considers Lionel's (John Glover) offer to investigate Clark.