The accountant of the commodity base discovers a small mistake in the documents, as told by the manager of the base. That night, someone hacked and robbed a safe with accounting documents, and committed the killing of an accountant. The case for the search for criminals was entrusted to police commissioner Krechetov and lieutenant Kasyanov.
1939-1940 Finnish war. In the very first days, a group of female volunteers goes to the front. Young nurses and nurses in the hospital and on the front line selflessly help doctors to save the wounded soldiers, with weapons in their hands, take part in the fight against the enemy. In severe trials, the friendship and love of the film's characters is tempered and strengthened.
