It's the final season of '24' (Mon., 9PM ET on Fox), and things are starting to get, well ... tense. On the latest episode, Jack Bauer (Kiefer Sutherland) finds himself betrayed by members of his own government.

While fighting terrorists, Jack gets a chance to unmask one of the bad guys. "Who are you?" he says. "You're making a huge mistake," is the reply. And then comes the big reveal. The terrorist is ... American.

Watch the video after the jump.It's the final season of '24' (Mon., 9PM ET on FOX), and things are starting to get, well ... tense. On the latest episode, Jack Bauer (Kiefer Sutherland) finds himself betrayed by members of his own government. While fighting terrorists, Jack gets a chance to unmask one of the bad guys. "Who are you?" he says. "You're making a huge mistake," is the reply. And then comes the big reveal. The terrorist is ... American.