1. Vortex
Aired Sep 25, 2002 · 42 minutes
Clark rescues Lana from the storm, but discovers that the spaceship is released, while Jonathan is buried alive with the unscrupulous reporter who discovered Clark's secret. Meanwhile, Lex is wracked with guilt over his critically injured father.
2. Heat
Aired Oct 2, 2002 · 43 minutes
Clark gains a new power - heat-vision. As he struggles to control it, Lex gets married to the new Smallville High teacher, Desiree Atkins, little does he know that she not only has an alterior motive, but that she's coming on to Clark too.
3. Duplicity
Aired Oct 9, 2002 · 42 minutes
Pete finds Clark's spaceship, forcing Clark to reveal his secret to his best friend. Dr. Hamilton is plagued by kryptonite-fueled illness and focuses on Pete. Meanwhile, Lana has to deal with Nell and her plans to remarry while Lex and Lionel adjust to life together.
4. Red
Aired Oct 16, 2002 · 43 minutes
Clark has his first run-in with red kryptonite in this exploration of classic Superman mythology, turning immoral when he gets his high-school ring holding a piece of rock. Meanwhile, Lex and his father have some issues to resolve when Lionel starts taking over the manor.
5. Nocturne
Aired Oct 23, 2002 · 42 minutes
Lana has a new stalker - a boy imprisoned in his basement by his parents who sneaks out at night to visit her. Meanwhile Lionel hires Clark's mother as his personal assistant.
6. Redux
Aired Oct 30, 2002 · 40 minutes
Martha's father William comes to town after many years of estrangement due do his disapproval of Jonathan. Meanwhile Clark must deal with a series of old-age deaths at Smallville High, and the new principal puts his foot down.
7. Lineage
Aired Nov 6, 2002 · 43 minutes
A strange woman shows up claiming to be Clark's biological mother...and that his father is Lionel. Meanwhile Lana decides to meet with the man who is her biological father.
8. Ryan
Aired Nov 13, 2002 · 43 minutes
Ryan (from "Stray") returns and Clark has to save him from Dr. Garner of the Summerholt Research Facility. Meanwhile, Aunt Nell leaves Smallville, and Lex wants to expand the plant but runs afoul of the mayor.
9. Dichotic
Aired Nov 20, 2002 · 42 minutes
A Smallville student, Ian, displays the ability to make clones of himself and uses his power to date both Chloe and Lana. Meanwhile Lex goes to anger management class and meets an attractive local doctor.
10. Skinwalker
Aired Nov 27, 2002 · 41 minutes
Clark becomes involved with a Native American woman, Kyla, and becomes aware of ancient Indian prophecy that warns of a man of great powers who fell from the sky. Worse, a wolflike creature is attacking the local Lexcorp construction project, and Martha and Lionel may be the next victims.
11. Visage
Aired Jan 15, 2003 · 43 minutes
Whitney returns to Smallville, eager to start back up where he left off with Lana. But everything isn't what it seems...
12. Insurgence
Aired Jan 22, 2003 · 44 minutes
Lex hires some thugs to bug Lionel's office but things get out of control when Lionel and Martha are taken hostage, and Clark must rescue them without revealing his secrets.
13. Suspect
Aired Jan 29, 2003 · 42 minutes
Lionel is shot in the manor, and Jonathan is the prime suspect.
14. Rush
Aired Feb 5, 2003 · 42 minutes
Students are engaging in wild, sometimes suicidal stunts, and Chloe and Pete are the next ones to become "infected."..and they use a piece of red meteor rock to get Clark to join them.
15. Prodigal
Aired Feb 12, 2003 · 43 minutes
Lex recovers his long-lost brother Lucas and uses him in a ploy to buy out his father's share of the company. But it soon becomes clear that Lucas isn't to be trusted, and Lex soon finds himself ousted from his own company.
16. Fever
Aired Feb 19, 2003 · 43 minutes
Martha catches a lungful of kryptonite-irradiated spores and a weakened Clark is her only hope for survival.
17. Rosetta
Aired Feb 26, 2003 · 43 minutes
Clark travels to New York to meet Dr. Swann, a brilliant scientist who holds a message for Clark from his home planet. Meanwhile Lana decides to move out of Chloe's house after they get into an argument about Clark.
18. Visitor
Aired Apr 16, 2003 · 42 minutes
After a schoolmate claims to be an alien and proves it by using heat vision, Clark investigates and believes the boy is from Krypton. Meanwhile, Helen confronts Lex over the locked room in the mansion that holds his investigation of Clark's secrets.
19. Precipice
Aired Apr 23, 2003 · 43 minutes
After Lana is almost assaulted by a college student, Clark injures the boy while helping her. When the Kents are sued for damages that could cost them the farm, Clark tries to find a way out of the lawsuit. Meanwhile, Helen's obsessive ex-boyfriend comes to Smallville to win her back but when she turns him down, he stabs her, prompting Lex to take the law into his own hands.
20. Witness
Aired Apr 30, 2003 · 41 minutes
Clark runs up against super-strong robbers who are apparently tied to LexCorp. And Chloe begins to ally with Lionel, while Lana and Henry Small bond.
21. Accelerate
Aired May 7, 2003 · 44 minutes
Lana is haunted by the ghost of a dead friend, Emily, but the "spirit" has connections to Lionel Luthor, who is also scheming to get control of the Indian caves and "help" Lex with his wedding.
22. Calling
Aired May 14, 2003 · 43 minutes
Dr. Walden comes out of a coma with super-powers and a desire to kill Clark, piquing the Luthors' interest. The spaceship starts talking to Clark, and Helen and Lex prepare for their wedding.
23. Exodus
Aired May 21, 2003 · 43 minutes
A sense of foreboding surrounds Smallville as Clark must choose between staying with Lana and his family or fulfilling his destiny to rule the Earth. Lex and Helen prepare for their marriage, and Chloe considers Lionel's offer to investigate Clark.