Clark manages to escape from the Phantom Zone with the help of an unexpected ally. He subsequently sets out on a mission to hunt down the dangerous prisoners who followed him to Earth. Adding to Clark's troubles, there is a new vigilante in town who goes by the name Green Arrow. Meanwhile, Lex and Lana take the next step in their relationship. As the season progresses, the rivalry between Clark Kent and Lex Luthor will explode into a fierce good-versus-evil battle.
All episodes — Season 6
S6 E1Zod
Sep 28, 20069.142 min
A powerless Clark is trapped in the "Phantom Zone" surrounded by the criminals his father imprisoned there. However, an unexpected ally comes to his aid. Meanwhile, Zod in Lex's body advances his plan to transform Earth into a new Krypton,
S6 E2Sneeze
Oct 5, 20068.542 min
In the aftermath of Zod's activities, Clark develops a new power. Lois gets a new job, Lana takes a new step in her relationship with Lex, and Lex has to deal with a new danger. Meanwhile, an old friend of Lex's arrives in Metropolis.
S6 E3Wither
Oct 12, 20067.641 min
Clark and Chloe pursue a plant creature that uses male humans to recreate, one which has taken Jimmy Olsen as its next human breeding ground. Meanwhile, Oliver Queen asks a reluctant Lois to be his date at a charity ball held by Lex.
S6 E4Arrow
Oct 19, 2006942 min
The mysterious Green Arrow steals a necklace from Martha, and both Lois and Clark resolve to find out who the vigilante is. While Clark determines Green Arrow's true identity, Lex continues his investigation of the mysterious black box whil
S6 E5Reunion
Oct 26, 20068.442 min
Lex and Oliver Queen return to their old prep school for a reunion, but Oliver's old friends (and Lex's old enemies) start dying in mysterious accidents. Meanwhile, Clark learns that someone... or something may have left the Phantom Zone wi
S6 E6Fallout
Nov 2, 20068.240 min
After escaping from the Phantom Zone, Raya comes to Smallville to visit Clark. Raya and Clark grow close, and Raya reveals how to repair the Fortress of Solitude. Unfortunately, Baern, another escapee seeks out revenge on Clark and Raya for
S6 E7Rage
Nov 9, 20068.142 min
After being shot while stopping a carjacking, the Green Arrow begins acting strangely. Chloe and Clark investigate and find Oliver is taking a super drug that while healing his wound, has some dangerous side effects.
S6 E8Static
Nov 16, 20067.641 min
One of the escapees from the Phantom Zone has killed the crew of a ship in Seattle. Clark confronts the killer who feeds on the bones of his victim. In Smallville, a patient in LuthorCorp Labs escapes experimentation and seeks revenge on Le
S6 E9Subterranean
Dec 7, 20067.540 min
An illegal immigrant comes to Clark for help, escaping from a nearby farm where he's working... a farm that houses a dark secret.
S6 E10Hydro
Jan 11, 20078.142 min
A Daily Planet gossip columnist uses her special power to overhear a conversation between Lana and Chloe, and publishes the conversation... where Lana admits having doubts about marrying Lex. While Chloe investigates the reporter, Lois asks
S6 E11Justice
Jan 18, 20079.242 min
When Lex's Level 33.1 project comes to fruition, Oliver Queen must bring together several of Clark's "heroic" super-powered allies together: Arthur Curry, Bart Allen, and Victor Stone.
S6 E12Labyrinth
Jan 25, 20078.439 min
Clark is in his barn one moment... and the next finds himself in a psychiatric hospital where he discovers he's been suffering from delusions that he came from another planet and has super-powers.
S6 E13Crimson
Feb 1, 20078.442 min
Clark is once again exposed to red kryptonite, and his "other self" goes on a rampage of sorts on Valentine's Day, kissing the women he's most attracted to and expressing his uninhibited feelings for the various relationships around him.
S6 E14Trespass
Feb 8, 20077.442 min
Lana has a stalker which leads her to an unexpected hideout. Also, Chloe has to reevaluate her feelings for Clark after she and Jimmy break up due to Jimmy's belief that she isn't really over Clark.
S6 E15Freak
Feb 15, 20078.242 min
A boy named Tobias was blinded by the meteor shower but given the ability to identify other meteor freaks. Lex is using Tobias to locate other people with abilities so that he can perform experiments on them. Lana learns of Tobias and is fe
S6 E16Promise
Mar 15, 20078.642 min
Clark has second thoughts about Lana marrying Lex, and Lana has the same concerns. Meanwhile, the doctor involved in the secret behind Lana's pregnancy threatens Lex with his knowledge.
S6 E17Combat
Mar 22, 20077.840 min
Clark and Chloe find an escaped Zoner named Titan who is the star of a secret fight club that puts its death battles on the internet. Lois can tell that there is a story and goes to investigate, where she is put in the ring to fight. Clar
S6 E18Progeny
Apr 19, 20078.241 min
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.
S6 E19Nemesis
Apr 26, 20078.141 min
Lex and Clark get a chance to hash out their differences... when they're both trapped in a cave after an explosion, and Clark is unable to get them out without revealing his powers.
S6 E20Noir
May 3, 20076.941 min
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
S6 E21Prototype
May 10, 20077.941 min
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 attack and becomes the so
S6 E22Phantom
May 17, 20078.942 min
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 fatally i