Mysterious woman appears, claiming to be a newlywed husband's missing wife.

Follows the persistent, but not always noticeable battle for the moral foundations of the individual, for the future of young people.

In December 1941. For five days from the front line in besieged Leningrad arrives for re-forming company. The soldiers are placed in barracks outside the city. A young soldier Alexei Kazantsev pays attention to the girl Olya. She comes to the barracks every day to see her father, Private Koshkin, who among the St. Petersburg volunteers is going to go to the front. Olya is sick, and from hunger she can hardly stand on her feet. Koshkin gives her his tiny ration, which is given to soldiers. Alexei meets Olga and does his best to save the girl. On the eve of Alexei's return to the front, Olga becomes his wife.

In the village of Timokhino, an explosion occurred due to the designers' oversights regarding the gas pipeline, resulting in fatalities, while the designers did not admit any guilt.

A film about the daily life of naval service, about an officer’s honor, and about true male friendship tested by dangerous voyages. Outside of their professional duties, the heroes sometimes find it harder to make a choice or reach the only right decision than they do on the ship, which is why only there do they feel “in their element.” Based on the novella “Tomorrow’s Worries” by Viktor Konetsky.