Source Code: Difference between revisions

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==Plot==

<!-- Plot summaries should be 400-700 words long according to Wikipedia:FILMPLOT. This plot summary has been carefully condensed to 701, slightly longer than recommended due to the film's complex, non-linear storyline. -->

[[United States Army|U.S. Army]] pilot Captain Colter Stevens wakes up on a [[Metra]]<ref>{{cite web |last=Wronski |first=Richard |title=Compared to Metra train's movie fate, delays look tame |url=http://articles.chicagotribune.com/2011-03-09/news/ct-talk-metra-movie-0310-20110309_1_metra-rock-island-line-phil-pagano |access-date=June 5, 2014 |website=[[Chicago Tribune]] |date=March 9, 2011 |archive-date=June 6, 2014 |archive-url=https://web.archive.org/web/20140606225501/http://articles.chicagotribune.com/2011-03-09/news/ct-talk-metra-movie-0310-20110309_1_metra-rock-island-line-phil-pagano |url-status=live }}</ref> [[Commuter rail|commuter train]] going into [[Chicago]]. He 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 while passing by another train, killing everyone aboard.

Stevens abruptly awakens in a dimly lit cockpit. Communicating through a video screen, [[United States Air Force|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 in a vent inside the lavatory but is unable to identify the bomber. Still thinking he is in a simulation, Stevens leaves the bomb and goes back down to the main cabin 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 from 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 while interrogating the suspect.

The capsule power supply malfunctions as Stevens reawakens. He claims to have saved Christina, but Dr. Rutledge tells him that she was saved only inside the "Source Code". Rutledge explains that the Source Code is an experimental machine that reconstructs the past using the dead passengers' residual collective memories of eight minutes before their deaths. Therefore, the only thing that matters is finding the bomber to prevent the upcoming second attack in Chicago.

On histhe next run-in, Stevens learns that he was reported as killed in action two months earlier. He confronts Goodwin, who reveals that he is missing most of his body, is on life support, and is hooked up to neural sensors. The capsule and his healthy body are "manifestations" made by his mind to make sense of the environment. Stevens is angry at this forced imprisonment. Rutledge offers to [[Assisted suicide|terminate]] him after the mission, and Stevens eventually accepts.

After numerous attempts, including being arrested by train security for trying to obtain a weapon, Stevens identifies the bomber through a fallen wallet as the nihilistic domestic terrorist Derek Frost. He memorizes Frost's license and vehicle registration plates, and discovers a [[dirty bomb]] built inside a van owned by Frost; Christina follows him, and Frost shoots both of them dead.

Outside the Source Code, Stevens relays his knowledge to Goodwin, which helps the police arrest Frost and prevents the second attack. He is congratulated for completing his mission. Rutledge secretly reneges on his deal to let Stevens die, as he is still the only candidate able to enter the Source Code.