On the eve of the Smallville High School Prom, stuck-up candidate for Prom Queen Dawn Stiles is pulled into a coma when she is involved in a car crash into a ravine filled with dozens of chunks of kryptonite. While her body lies in a coma, ...

A black kryptonite explosion splits Lex in two and his evil side - Alexander - is released. Alexander imprisons Lex in the mansion then gives full vent to his evil side - he threatens to evict Lana from the Talon unless she becomes his mate...

Lucy Lane, Lois' younger sister, comes to Smallville but Clark catches her stealing money from the Talon to pay off a European crime syndicate. Lex offers to help but everything is not what it seems. Meanwhile, a thief breaks into Lana...

After Clark receives a message from the recently-deceased Dr. Swann, he and Lana follow Jason and Lex to China in search of one of the kryptonian crystals. Lana is tortured, causing Isabelle to emerge and wreak havoc in her search for the c...

Lois accidentally hits a dog and brings it back to the farm to heal, but Clark quickly realizes it has super-strength. He investigates and discovers it was part of an aborted LuthorCorp experiment...and that robbers are using the dogs to he...

Clark is approached by Met U for recruitment and meets Geoff, a former Smallville resident. It soon becomes apparent that he is using his powers to paralyze anybody who gets in his way...including Lois.

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...