The Tomorrow War (2021)

A group of time travelers soldiers arrive from the year 2051 with a warning and an urgent request: Thirty years in the future, humankind is on the verge of losing a global war against an alien invasion and they need people from the present to join in battle by being transported to the future in order to fight. Dan Forester, a family man who works as a high school teacher, is determined to save the world, being an ex-military and a brilliant scientist, he accepts his role as soldier and sets out on this time travelling dangerous journey.