While the world prepares for the inevitable doom, Major Willam Cage (Tom Cruise) at the United Defense Force Headquarters is desperately trying to shirk off combat duties, citing that he is an advertising guy and not a soldier basically.
So, he is arrested and sent to the barracks in order to be dispatched to the battlefield. From then on he is stuck in a time loop, shuttling between death and re-living his last few days again and again till he saves the world.
How he does it, forms the interesting crux of the narration.
The film's primary gimmick is its time-looping narrative device that initially works in its favour. But the over-repetitive cycle wastes screen time that leads not only to a tiresome viewing experience, but also raises doubts about the credibility and acceptance of the concept.
