Source Code (2011)

Source Code (2011), the U.S. science fiction action thriller film directed by Duncan Jones and written by Ben Ripley, follows the story of U.S. Army pilot Captain Colter Stevens as he wakes up on a Metra commuter train headed to Chicago. Confused and disoriented, his last memory was of flying a mission in Afghanistan. However, to those around him, including his friend Christina Warren, he appears to be Sean Fentress, a school teacher. As he shares his confusion with Christina, the train suddenly explodes while passing another train, resulting in the death of all passengers. He then awakens in a dimly lit cockpit where Air Force Captain Colleen Goodwin verifies his identity and briefs him on his mission: to find the train bomber.

Afterwards, he is sent back to the moment he first woke up on the train through a video communication with Goodwin. In the midst of a simulation, Stevens discovers a bomb hidden in the bathroom vent. However, he cannot determine who planted the explosive. Acting under the belief that it is just an exercise, Stevens heads back to the main cabin before the train is once again destroyed. But to his surprise, he wakes up in his capsule and demands an explanation. He learns that the train really did blow up and it was only one attack of many to come. Sent back for another try, Stevens gets off the train with Christina to follow a potential suspect. Unfortunately, this leads nowhere and as they are questioning the person, Stevens falls onto the tracks and is killed by a passing train as it explodes in the distance.