how about an alternate universe America that decided the third reich would be better suited starting out in america.MrWunderful said:
so they kill off Hitler, cramp his style and start world domination through superior martial force immediately.
of course the allied forces don't catch on until it's too late, special agents completely eradicate the russian ruling government, the Japanese are used to keep the chinese in check, and the whole world falls under the mighty fascist american boot.
BUT, the world is not enough, and the Fascist Americans soon invade OUR reality where the world must unite to stop the otherworldy threat.
alternatively, have the alternate universe Hitler be a good guy and lead the resistance for edgy bonus points.