In a not so distant future the Earth is under attack by Mimics a destructive alien race. The cities destroyed and millions of human victims, armies from all countries join in a final defensive effort. Lt. Col. Bill Cage (Tom Cruise) has never participated in the fighting at the front, but it’s sent directly under fire. In a few minutes he is killed, but fails to take the life of an alien. But the soldier wakes up in the morning the same day that lived already and is sent again forced to fight and die. To physical contact with alien thrown in a time loop that repeats indefinitely?