Source Code (2011)

U.S. Army pilot Captain Colter Stevens wakes up on a Metra commuter train going into Chicago. Stevens is disoriented, as his last memory was of flying a mission in Afghanistan. However, to the world around him – including his friend Christina Warren and his reflection in the train’s windows and mirrors – he appears to be a different man: a school teacher named Sean Fentress. As he expresses his confusion to Christina, the train explodes, killing everyone aboard. Stevens abruptly awakens inside of a dimly lit cockpit. Communicating through a video screen, Air Force Captain Colleen Goodwin verifies Stevens’ identity and tells him of his mission to find the train bomber before sending him back to the moment he awoke on the train. Believing he is being tested in a simulation, Stevens finds the bomb, but is unable to identify the bomber before the train explodes again.

Stevens again reawakens in his capsule, and after demanding to be briefed, learns that the train explosion actually happened, and that it was merely the first attack of a suspected series. He is sent back yet again, eight minutes before the explosion, to identify the bomber. This time, he disembarks the train (with Christina) to follow a suspect. This turns out to be a dead end, the train still explodes in the distance, and Stevens is killed by a passing train after falling onto the tracks.