During World War II, an old man, David, living with his daughter-in-law, Maria, while his son is away at war, is being regularly harassed by a German airplane, until one day, when he decides he's had enough.
In the port of Danzig, the military transport Tyrol is preparing to leave, on board which are selected SS units and seventy naval crews. The commander of the Soviet submarine "S-31", which received serious damage, receives the task of detecting and attacking enemy transport...
A young investigator undertakes to investigate another robbery. The elements of crime are obvious: a fair amount was stolen from the plant’s cash register. The investigator has two suspects — a cashier and a career criminal.
