Baby Clark (Kal-El) arrives on Earth. Teen Clark starts high school, saves Lex's life after a car accident, and finds out about his past and birth parents.

When Coach Walt Arnold's football legacy is threatened by a cheating scandal, the coach entices Clark onto the team. Meteor Rocks in the coach's sauna infects him with the ability to generate fire, and his enemies start getting burned.

Clark discovers that he has X-ray vision, but struggles to use it properly. Meanwhile, shape-shifter Tina Greer robs a bank impersonating Lex Luthor, and then decides that she wants to become Lana Lang - permanently.

Overweight teen Jodi submits to a diet of meteor-infected vegetables from her father's greenhouse. They magically make her thin, but she has an intense craving for body fat. Anyone in her vicinity is in danger, including her date, Pete.

Lex and his girlfriend, Victoria, are attacked by an invisible entity. Suspicion falls upon the Palmer family, who are caretakers at Lex's mansion. Chloe believes that daughter Anna Palmer is responsible because of her jealousy of Victoria.

Clark and classmate Eric Summer are both struck by lightning while Eric is holding a meteor rock, and Clark's powers are transferred to Eric. While Clark experiences normal humanity, the emotionally challenged Eric goes on a rampage.

Depressed from losing his scholarship, Whitney joins a gang of thieves. He gets a meteor rock-laced tattoo and gains the gang's power of phasing through walls. They rob Luthor mansion and seriously injure Chloe, who is interviewing Lex.

When Dr. Steven Hamilton, physically sick from repeated exposure to meteor rock radiation, causing constant Parkinson-like twitches, becomes a liability to Lex Luthor, he terminates their contract. Dr. Hamilton leaves the mansion and drives down the road like a lunatic and causes a serious accident with a truck driven by Ray Wallace. The truck overturns in a cornfield near Clark Kent's spacecraft and, while trying to rescue Ray, Pete Ross sees the UFO. The next morning, Pete asks Clark to help him to bring the object to his workshop. When Dr. Hamilton steals the spacecraft, Pete believes Clark has taken it, so Clark discloses his secret to his friend. Meanwhile, the now blind Lionel Luthor moves into Lex's mansion forcing Lex to care for him. Also, to Lana's dismay, her aunt Nell Potter is in love with a new boyfriend named Dean.

At Smallville High School, a swimmer mysteriously ages and dies after meeting his girlfriend Chrissy Parker. The new principal Reynolds arrives and comes into conflict with Clark Kent because he is a friend of Lex Luthor's. Clark asks Chloe and Pete to investigate Principal Reynolds' history, as well as Chrissy whom they suspect is a life-draining freak who needs three youths to stay eternally young every 12 years. Meanwhile, the Kents are having financial problems and Martha contacts her estranged father, whom she hasn't seen for twenty years, to borrow some money, much to Jonathan's disapproval. Lana Lang also finds an old picture of her mother with an apparent boyfriend. After not getting any help from Aunt Nelle, Lana then asks Lex to help her investigate.

Clark rescues mind-reading Ryan James from a research hospital that treats him like a lab rat. Ryan's guardian doctor sues to get Ryan back, and Clark learns that Ryan has a brain tumor that needs treatment.

Clark has second thoughts about Lana marrying Lex, Lana starts to have the same concerns. Meanwhile... the doctor involved in the secret behind Lana's pregnancy threatens Lex with his knowledge.