A promo for Torchwood: Miracle Day featuring Captain Jack Harkness, as played by John Barrowman. He looks like a hero, handsome, witty and subversive with a killer smile, but there's a reason for that glint in his eye. His dashing style hides a secret. Truth is, Jack Harkness is immortal, the only one of his kind. He once ran the Torchwood Institute, a British organization dedicated to fighting the strange and bizarre. But Torchwood closed down, and Jack disappeared to start yet another of his many new lives. When a new, epic danger affects the whole planet, Jack finds himself back at the center of events, fighting not just for his own life, but for everyone on Earth...