A group of Swedish tourists are on the way to a Russian village to witness the so called 'Festivity of Neptunus', in which the inhabitants take a dive in a hole in the ice. This tradition, however, does not exist at all. The inhabitants try to make a good impression by starting the 'tradition' to please the tourists.
At the end of September 1941, Soviet artillery troops in besieged Leningrad realize that pretty soon they will fire their last shot, and after that the defense of the city will be doomed. The film is based on a true event: a small group of fearless soldiers transported a large supply of gunpowder through enemy lines to Leningrad.