A border guards are hunting a spy infiltrated to the USSR.

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.

In a capitalist country, workers are heavily repressed but manage to get a "death ray" to fight back. (A part of the movie is lost.)

This story of the Nazi prison camps in the 1930s deals with the attempts of the Nazi guards to break the spirit of the Communists in concentration camps.

Gavroche learns that his father, who was exiled to hard labor, dies. Hatred of the tyrant-king leads the boy to the barricades of Montmartre.

A competition between milkmaids turns into magic duel as one of them hires a witch to perform a milking ritual, while a young girl discovers a talent to communicate with cows. Only her dreams are miles away, as she's in love.

In 1919, during the post-revolution Russian Civil War, a naval detachment made up of communist Reds defends the strategic city of Petrograd from the White Russian counterrevolutionary forces

Working fishermen from a small village rise up against the entrepreneurs and the buyers, fighting for higher wages for their hard and difficult work.

The movie tells about the first years of Nazism. In the center of the plot is a German student graduating from an institute and receiving a diploma with a gold medal for success in science. The same is honored by his Jewish friend Joseph Voltmeyer. During the solemn ceremony, Nazi students provoke a fight, beat Joseph and Ruddy, who stood up for him.

Staged scenes of life in all strata of the Russian population before the October Revolution. Restoration of the national economy after the Civil War. Construction of new factories: Rostselmash, the Stalingrad Tractor Factory, and the Magnitogorsk Metallurgical Plant. Kuznetskstroy. Creation of new state farms. Training of personnel for the national economy. Elimination of illiteracy among the population in all regions of the country. Development of the rationalization movement among workers. Physical culture and mass sports activities among the population.