Wait ... what? Dana Walsh is a traitor on '24' (Mon., 9PM ET on Fox)?! Yes, so it seems! Not only that, she's a badass killing machine.

And this was a bit of a shocker: "It's me," she said on the phone. "CTU is back online." And that someone on the other end? Samir! And he's going to need some help getting clear of CTU surveillance.

Watch the video after the jump.Wait ... what? Dana Walsh is a traitor on '24' (Mon., 9PM ET on Fox)?! Yes, so it seems! Not only that, she's a badass killing machine. And this was a bit of a shocker: "It's me," she said on the phone. "CTU is back online." And that someone on the other end? Samir! And he's going to need some help getting clear of CTU surveillance.