Kara tells Lex he is destined to defeat the Traveler and offers to take him to the Fortress to learn how. Clark is stunned that Kara would go to Lex but it is revealed that Brainiac is impersonating Kara and she’s actually trapped in the Phantom Zone. Chloe is arrested by the Department of Domestic Security and Lana awakens from her comatose state. Meanwhile, in an epic turn of events, Clark and Lex face off in the Fortress and Lex learns Clark’s secret.

While Lex considers the ramifications of his discovery in the deposit box in Zurich, Jimmy researches the symbols in the Kawatche caves, while Clark investigates a mysterious symbol that leads him to the last surviving Veritas member.

Clark has discovered that Brainiac plans to destroy him as a baby, but believes the world would be better off without him and refuses to go back to save himself. He then finds himself swept into an existence where he never existed, and discovers what happens to an Earth without him.

While Clark tries to find Brainiac and Kara, Chloe inadvertently draws the government’s attention with her computer searches. A NSA agent forces Jimmy to spy on his girlfriend and determine if she’s working for a terrorist cell as they suspect. Meanwhile, Lex recovers the box in Zurich and discovers there are people who will kill to keep him from obtaining its secrets.

Lex seeks the key in Lionel’s locket so that he can uncover the secret of Veritas that will give him control of the Traveler. In his quest, he takes the last final step to evil by killing someone close to Clark.

Brainiac seeks out Kara to convince her to come with him, and when she refuses he strikes at someone close to Clark. Meanwhile, Lex attempts to get the information on Veritas that Lionel has hidden away, and begins to remember what really happened on the day of the meteor shower.

Clark is abducted and held in a kryptonite-lined cell at an abandoned hanger. After Chloe and Lana find a military electric probe at the farm, they confront Lionel, who suggests Lex may be responsible. Chloe and Lana get Kara away from Lex and get her to the Fortress, hoping Jor-El can restore her memories. Meanwhile, the daughter of Dr. Swann meets with Lex to discover his father’s involvement with the Veritas group.

Pete is working as a roadie for OneRepublic and develops super-stretching powers after chewing kryptonite-tainted gum. He ends up rescuing Kara and decides to go public with Jimmy’s help. However, Lex puts pressure on him to steal Kara’s bracelet from Lionel, by threatening to reveal Chloe is a meteor freak.

ALTERNATIVE:

Part 1

Part 2

Lex finds Kara in Detroit working as a waitress and offers to restore her memories, only to be shot in the head by an obsessive busboy. Clark must use experimental LuthorCorp technology to enter Lex’s memories and find out where Kara is, while Chloe contemplates whether to use her powers to heal Lex, despite the risk to herself.

Chloe, working with Oliver Queen, intercepts one of Lex’s files but is attacked by the Black Canary, a vigilante who takes the info from her. The woman returns the info to Lex, who asks her to take out the vigilante that has been attacking his operations: Green Arrow.