A glimpse of the future Lex Luthor (Michael Rosenbaum) is revealed after a kryptonite explosion splits Lex in two and his evil side - Alexander - is released. Alexander immediately imprisons Lex in the mansion and begins his rampage by trying to kill Clark (Tom Welling) and Chloe (Allison Mack) in the lab, jousting with Lionel (John Glover) and convincing him to return to the dark side and finally, threatening to close the Talon unless Lana (Kristin Kreuk) moves in with him. Jensen Ackles, Annette O'Toole and John Schneider also star. Terrence O'Hara directed the episode written by Steven S. DeKnight.
