Using the name Joe Foreman, Clark goes undercover to discover why Detective John Jones was shot. Meanwhile, Lana confronts Tess and reveals the truth about her involvement with Lex.

Three superheroes from the future travel to the past and join Clark in hopes that together they can defeat Brainiac, who has taken over Chloe's body.

Chloe and Jimmy have unexpected arrivals at their ceremony. Oliver is shocked to see Lana after expecting to find Lex. Lois and Clark begin to fall for each other.

Brainiac strikes and replaces Chloe's memories with Kryptonian code. In order to help his best friend, Clark must ask for Jor-El's help. Meanwhile, Davis tries to get Chloe to understand that Jimmy is wrong for her.

Clark receives a mysterious package containing the crystal that Tess found in the Arctic. When he touches it, it transports himself and a visiting Lois to the Phantom Zone where they meet Kara. She opens a portal to free Lois, but Zod'...

Jimmy takes a picture of Clark saving Lois from danger but it comes out in a blur on film. Tess decides the story should make front page for the Daily Planet. Chloe refuses to help Clark.

A serial killer is on the loose in Metropolis, but Clark and Chloe find themselves on opposing sides when Clark believes that Davis Bloome is responsible, while Chloe defends her new friend.

Chloe and Jimmy are among several couples kidnapped by a man who subjects his victims to a lie detector test to measure their feelings for each other, Clark and Lois pretend to be involved to lure out the kidnapper and find their friends.

Tess and her team of scientists trigger a signal through the blue Kryptonian crystal. It reaches an alien princess, Maxima, who comes to Earth to seek a suitable mate... and whose kiss kills mortal men.

When Oliver is poisoned, he starts having flashbacks to the period when he gained his archery skills... and met Tess. Meanwhile, Chloe has to make a decision which surprises Clark.

Chloe invites an injured 15-year-old to move in with her. Meanwhile, Clark experiences his first day of work with Lois.

Clark discovers the reason Lana married Lex then and sets out to kill Lionel. Lex tries to use DNA from the last phantom to power his super-soldiers. Lois goes to a dam to search for Lex's lab but is caught by a security guard and fata...

Lex tries to turn a soldier that supposedly died in Afghanistan into a "super-soldier." A senator threatens to tell the world about Lex's labs, prompting Lex to send the "soldier" to kill the senator. Lois sees the ...

Lana and Lionel have a secret meeting, after which Lana is shot. While Jimmy is observing photos of the encounter, he is knocked unconscious. While unconscious Jimmy dreams about what life in Smallville would have been like in the 1940s. Cl...

Lex gets trapped in one of his labs by a distraught woman claiming he kidnapped her husband. She threatens to destroy the lab--with Lex still inside--unless he divulges her husband's whereabouts. When something unexpected causes a resc...

Lex discovers that Chloe's mother has special abilities and forces her to help him in exchange for Chloe's life. However, she has a trick or two of her own to use to escape.