This should help.
I’ve seen versions of this before, including on this message board. This one is missing one of the funnier lines, in which one of the Allies tells his team members they can team-talk by using the Navajo button.
It goes from the end of the war to the beginning so fast it seems like it’s stuck in a causation loop.*
*I have no idea what that means. I just know they use that term in Star Trek when they’re in a repeating time loop.