Season 2 — Episode 3

To the Last Man

Tosh falls for a handsome soldier, trapped out of his time, who unwittingly holds the key to saving the world. In an old hospital haunted by ghosts from 1918, a crisis foreseen by Torchwood 90 years ago is about to reach its climax. Time zones are colliding and with life-or-death decisions to be made, will Torchwood be able to stop an explosive end for Cardiff?