When a mysterious killer strikes at both Lana and Jason, Alicia is the leading suspect and even Clark comes to doubt her innocence. Feeling betrayed, she secretly tricks Clark into revealing his powers in front of one of his friends. And Ge...

Alicia (from "Obsession") is supposedly cured and returns to Smallville to start things back up with Clark. When she pushes for more and he turns reluctant, Alicia exposes him to red kryptonite, and the two go off to Las Vegas to ...

A LuthorCorp experiment is released into the atmosphere - a toxin that causes its victims to hallucinate their worst fear. Chloe, Clark, Lana, and Jason all fall victim to the toxin, and Lex, desperate to find a cure, takes a dangerous anti...

Lex is accused of killing a young woman and Clark turns to Lionel for help. Meanwhile, Lana has a dream of her ancestor and a mysterious second woman - a dead ringer for Jason's mother Genevieve, who arrives to visit her son and his ne...

Lana reads a spell book belonging to her 17th century ancestor, the witch Isabelle, and becomes possessed by her spirit. Isabelle resurrects her other two witches and together they seek out the kryptonian crystals, using their magic to rend...

Mikail Mxyzptlk, a foreign exchange student and bookie, has the power to control others and uses it to sabotage football games, including the one Clark is quarterbacking. Clark and Chloe figure out his secret, but he threatens to kill Chloe...

Clark is drawn to the state penitentiary by one of the kryptonian crystals, which Lionel is using to switch bodies with Lex. Clark intervenes and Lionel enters his body instead. While Lionel uses his newfound super-powers to regain his lost...

Jonathan's wallet is stolen by a super-speed thief, Bart Allen, who is faster than Clark. Bart comes to the farm and becomes friends with Clark, but Bart returns to crime when he sees an ancient manuscript that Lex has. As Clark soon r...

Clark decides to join the football team over Jonathan's wishes and gets the starting quarterback position when his predecessor attacks Jason over a girl. Clark and Lois investigate and discover that the cheerleaders are using kryptonit...

Abigail, an ugly high school girl, gets plastic surgery from her surgeon-mother to boost her popularity. However, her beauty hides a dark secret - when she kisses someone they're inflicted with life-threatening hallucinations. When Lan...

After discovering that Chloe's body isn't in her coffin, Clark and Lois Lane investigate but are stopped by Lois' father, General Sam Lane. They believe General Lane knows more than he's telling, and figure out he's...

Clark returns to Smallville as Kal-El - intent on fulfilling his destiny, he goes after a powerful Kryptonian crystal that Lex has obtained in Egypt. Meanwhile, newcomer Lois Lane arrives in Smallville to look into the death of her cousin C...

Kara, a beautiful superpowered girl from Krypton, entices Clark to join with his father and embrace his destiny. Clark is left without support after Pete's departure when Jonathan reveals the deal he made with Jor-El. At the same time,...

Clark decides to tell Lana his secret so they can finally be together. Meanwhile, an errant FBI agent kidnaps and tortures Pete to try and force him to reveal Clark's secret. Also, Lex panics after the FBI gives him 24 hours to turn ov...

Jeremiah Holdsclaw, a young Kiwatche Indian, steals a mythic knife from the tribal caves and gets superpowers similar to Clark's. Jeremiah believes he is the fulfillment of the ancient prophecy of Naman, "the man who fell from the...

Believing that key information about his father's past was lost when his memory was erased, Lex decides to join an experimental program with Dr. Garner to regain the information so he can turn his father over to the FBI. Knowing that L...