A family man is drafted to fight in a future war where the fate of humanity relies on his ability to confront the past.
The world is stunned when a group of time travelers arrives from the year 2051 to deliver an urgent message: 30 years in the future, mankind is losing a global war against a deadly alien species. The only hope for survival is for soldiers and civilians from the present to be transported to the future and join the fight. Among those recruited is high-school teacher and family man Dan Forester (Chris Pratt). Determined to save the world for his young daughter, Dan teams up with a brilliant scientist (Yvonne Strahovski) and his estranged father (J.K. Simmons) in a desperate quest to rewrite the fate of the planet.
With the world fighting a losing battle against the multitudes of a fierce and unstoppable extraterrestrial invader, humankind is living on borrowed time. Amid chaos, and an impending Armageddon, the former Green Beret First Sergeant, biology teacher, and doting father-of-one Dan Forester, finds himself in the ruins of an alien-infested, peril-laden urban maze, struggling for survival and answers along with a doomed army of untried soldiers. Now, a handful of defenders carries the weight of the world's desperate hopes. Can they come by a second chance?