During the Victory day celebration, the heroes realize that the themed military party has been replaced by the reality of the fascist rear. Five guys, known to the audience from the first part of the film, find themselves in a German beer hall. In the confusion of the battle, they manage to escape, but in the confusion, "aliens from the 21st century" accidentally injure a red army soldier named Kantaria. Friends understand that if he does not survive, the course of history will change — who will plant the flag on the Reichstag? Now their task is to get to their own, not to let the future war hero die and, of course, go back to their time…