Present time. A squad of young soldiers of the Russian army during the march-throw splits from the main group. In order to save time, they decide to cut the path, but get into the strange fog, which transfers them to the past, right into the World War the Second. Boys, who saw fight only in the movies, and imagined it on the training field, get into the heart of the real WAR. Real courage, real fear, real love and hate, and real DEATH. No time to ask questions. Survive and fight for your country!

During the Victory day celebration, the heroes realize that the themed military party has been replaced by the reality of the fascist rear.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…