A group of Ukrainian women are forced to work in the mine under the supervision of cruel enemy soldiers. When the soldiers are forced to retreat and decide to blow up the mine, the women organize a guerrilla action to stop them.

Don Cossack Stepan Razin vowed to take revenge on the boyars for his tortured friends. Having led the rebellious peasants, he becomes the leader of an entire army. Humiliated and insulted people flock to him from all over the Russian land.

Collective farmers of the Volga region decide to create the first female fishing team. Her hardworking and neat Varvara Kladova, a quiet and gentle woman suffering from adultery with Stepan's husband, becomes her head. Having overcome the first difficulties, women are ahead of the brigade of men. And this makes Stepan look at his wife with different eyes.

The plot is built around two charming sisters — a strict, wayward Galina, an assistant professor of mathematics, and a windy, frivolous student Shurochka. Despite the fact that the girls are so different, they are looking, of course, for one thing — love. The events take place in the summer pre-war Moscow and in the country where both sisters go: one in order to prepare for the re-examination, the other — to conduct math classes with the military from the Yuryev Camps located near the dacha village. Funny and difficult situations, intrigues, tears, joy — all this will be experienced by young girls on the way to their happiness.

The station keeper Kruglikov was exiled to a remote Siberian village many years ago for shooting his superior, a general, who demanded that he go with him as a matchmaker to Kruglikov's favorite girl, Raya. A political exile is brought to the station. She turns out to be Raya. For a few minutes the former bride and groom were together, and then she was taken away again.

Based on the novel of the same name by Mikhail Sholokhov. About how collectivization was carried out on the Don in sharp contradictions, difficult and tense.