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.
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 story takes place in a Soviet placed in what is now Ukraine. A mechanic arrives in the Soviet, lead by a young independent woman driving tractors and, between many comedy sketches and propaganda mottoes, a love comes to light.
The film tells about a band of demobilized Red Army men and two civilians who cross a Middle Asian desert. They are forced to do battle with superior forces of Basmachi rebels for the dry draw-well.
Two men shipwrecked on an island in the Caspian Sea are saved by members of a collective farm, where they work on its fishing boats and woo the young woman leading the fishermen.
Not being able to implement his invention in his home country, engineer Arrowsmith, the author of the patent for ore flotation, goes to the USSR to work at one of the flotation plants, where he soon learns that a group of Soviet engineers is conducting similar work.