Smallville

Season 6, Episode 22

Episode Title: Phantom

Air Date: 2007-05-17

Overview:

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 injured. Chloe's power is discovered.