We start in August 1942. Churchill is still in Moscow, getting down with Uncle Joe. Stalin accuses the British of being a bunch of pussies, too scared to fight the big bad Nazis.
To try to break up the UK/USA/USSR love nest, the Nazis dig up 3000 dead bodies of Polish generals (Katyn massacre) and lay the blame on the Soviets who deny it (but their fingers are crossed behind their backs). And Stalin dissolves the Comintern, pretending, for the moment, that he has no intention of trying to spread Communism any further around the globe.