There are two Clark Kents (Tom Welling). One is a young man whose life in the tiny Kansas town of Smallville sets him on destiny's path. The other is a "Bizarro" who shares Clark's DNA but not his values. Only one of them can survive. The Superman mythology grows deeper and more powerful in an event-packed season that includes the arrival of Clark's cousin Kara (Laura Vandervoort), also known as Supergirl. He tells her to keep a low profile and master her powers, but Kara has other ideas. Plus, Lana Lang (Kristin Kreuk) might prefer Bizarro to the real deal. Lois Lane (Erica Durance) makes a career leap. Chloe Sullivan (Allison Mack) finds that balancing a meteor power with a personal life isn't easy. And Lex Luthor's (Michael Rosenbaum) power lust has a new fixation: Kara. New characters and complications, new secrets and lore, new thrills and special effects -- get ready for it all in the 20 episodes of Season 7 (2007-8). Bonus features include commentaries, unaired scenes, three featurettes, and a Smallville digital comic book.