The nuclear submarine K-119 Voronezh, setting out on a mission in our time, falls back into the year 1942. And there is nowhere to return to—there is no longer a base, no home. The St. Andrew’s flag, the double-headed eagle on the sail, officers wearing shoulder boards—will they be accepted in Stalin’s USSR? But there is no doubt which side to intervene on in the war—for if the Germans win, there will be no Russians at all. Summer 1942—nothing has yet been decided. And the people from 2012 will have to take part in battles, and simply live in a world they considered history. And in the end, it will become a completely different history and already another world.