Colter Stevens (Jake Gyllenhaal) wakes up to find he is in another man’s body, sitting with a pretty girl who is talking to him. The bomb detonates and he finds himself in a pod speaking with a military woman named Goodwin.
He is told that he has to go back and find the bomber. He has eight minutes to complete his task.
His pretty train passenger is Christina, played by Michelle Monaghan (Mission Impossible III, Pixels)