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.
Episodes for season 2
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.
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.
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.
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.
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.
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.
Martha catches a lungful of kryptonite-irradiated spores and slips into a coma. Clark, who temporarily loses his powers by breathing in the same spores, is her only hope for survival. Lex sneaks behind Helen’s back at the hospital in his continued search for the truth about Clark.
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.
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.