Hey, I like Chris Pratt. But he's made better movies. I was slightly disappointed with this Amazon Prime streamer.
He plays war veteran Dan Forester. He's got a hot wife, Emmy. A cute daughter, Muri. And an estranged dad, played by J. K. Simmons. (J. K. Simmons also lulled me into a "Hey, maybe this'll be good" attitude.)
The only problem being that a bunch of human warriors from 50 years in the future transport themselves into an exciting soccer match. And they're here to beg for help: in their time, a race of alien beings known as "whitespikes" are in the process of wiping out humanity. "Help us, past humans, you're our only hope." There's a discussion of the time-travel mechanism; it has complexities and limitiations, all of which are conveniently tailored to the plot.
The first batch of volunteers return mostly dead. As do their followups. Eventually, the process goes to conscription: folks who are gonna die soon anyway. And guess who gets roped in? Ah, good guess.
So Dan's off to the future, and it's grim. Due to a technical screwup, his group gets transported to Miami about a thousand feet too high. Which kills most of them right off the bat. But Dan is fortunate enough to fall into a swimming pool atop a highrise. (Which in reality would be deadly, but is treated here as a very high dive.) He's sent off to retrieve important research from a local lab, which involves a lot of running, shooting, and explosions. We finally get a look at the whitespikes, and they're as fast, ugly, and deadly as CGI can make them. Even with rifles with a near-infinite number of rounds, the humans are fighting a losing battle.
Hey, that's Chloe from 24! … Alas, she turns out to not be a major enough character.
The movie turns out to have a streak of gooey sentimentality at its center, a theme of familial abandonment and reconciliation. Worse than Armageddon in that regard.
Time travel movies have to deal with paradoxical issues, multiple futures, etc. I'm sure some nerd has classified the various approaches. This one seems to be similar to Back to the Future: stuff you do in the past can alter the future timeline, wiping out the previous version of events. So you can probably guess what the climax involves.