Clark (Tom Welling) is suspicious when Lana (Kristin Kreuk) suddenly becomes attracted to a fellow student (guest star Kevin Zegers) and begins to act rebelliously, which eventually lands her in jail. Clark's suspicions are confirmed when he discovers Lana's new boyfriend has magnetic powers that can move objects and alter human emotions, but when he tries to free Lana from the paranormal hold that is controlling her, she tries to kill him. Meanwhile, Lex (Michael Rosenbaum) discovers Chloe (Allison Mack) has been delving into Lionel's (John Glover) past and tries to get her to join forces against his dad.