Longtime fans of 'Torchwood' (Friday, 10PM on Starz) know that you get attached to a character at your own peril. They weren't particularly happy with the massacre in the BBC season three mini-series, 'Children of Earth.' But the one character who seemingly couldn't die, mostly because he is actually immortal, was Captain Jack, a good friend of some guy called The Doctor.

But in the Starz version of the show, 'Torchwood: Miracle Day,' everyone is immortal, except Captain Jack. And as it turns out, his blood holds the key to reversing that immortality. The only other remaining original 'Torchwood' character, Gwen, must shoot him and release his blood.

There were several characters kept alive by the strange miracle that made everyone immortal, including Rex Matheson, played by Mekhi Phifer. As Captain Jack went down, so did many of the walking wounded from the rest of the series. "We said goodbye to them all on the day that death came back," Gwen said.

This may or may not also be the end of 'Torchwood.' According to James Hibberd at EW.com, the show is close to renewal -- that depends on what creator Russell T Davies can come up with for a story. The main question will be, will it include Captain Jack?