Guys I just woke up and dreamed with the movie and I got the basic set up:
The world is a very bleak place, the president of the united states is living on a bunker dealing with a civil war that rages across the globe against people that defend what Thanos did. Rocket, Banner are with the president and make up his protection and advice unit. They receive a message from Tony Stark on Titan, he has a plan. But the President need help and so he calls a meeting with the president of Russia and that meeting is set to be on the white house that now is abandoned and almost in rumble.
Cut to the meeting, The presidents arrive with their teams and sit up to discuss stark plan to revert Rapture Thanos, first they need to get him out of Titan and Stark send them a plan for a spaceship he was working on, based on chitauri tech. Thanonites start to attack the meeting and rocket goes to fight with them. Cut to Cap he is now with a kind of x-men, with some kids with powers and Helen Mirren as a kind of professor X but with hair. Cap sees the commotion in the white house, because he is near and is in conflicted not to step up and intervene, all because Hellen Mirren character is saying to him that is not his fight and all.
Cut to Rocket, he is in trouble and president of Russia reveals that one of his advisers has powers, his feet are like monkey feet only with claws that cut through everything and he send him to help Rocket, He is actually pretty cool he goes through Thanonites like butter. Cap goes about and sees something that make him believe that his friends are in the white house, he pauses and cut. The fight goes on and Russian guy and Rocket can't handle the shit going on, dramatic enter Cap arrives in the white house with his arms shields and starts to kick-ass and lead rocket and the russian guy.
And then I woke up.