On the proletarian solidarity of the French navy with the revolutionary people of Russia. The action takes place in the early years of Soviet power in the coastal city of Russia. The French cruiser Mirabeau threatens the city from the sea.

In the Caucasus, among the picturesque mountains there is a guerrilla war between the Whites from Bicherakhov’s division and the Red Army soldiers. The Chechen girl Dzhalma finds an injured Ukrainian guy Mykola in a valley. She saves his life and helps him to recover. Young people fall in love with each other, and after the Bolshevik’s victory both of them travel to Ukraine. Dzhalma ends up in a traditional Ukrainian village. 

Children from working class neighborhoods wearing patched-up clothes have fun in Kyiv streets - they slide down showy slopes, walk on the brink of a precipice and even conquer the light ice of the Dnieper river. They can see, how rich people live, only through a gap in the fence. The boy Fedko who is called "a tearaway" because of his naughty and disobedient character comes up with some risky entertainment, and adults often punish him for this while his friends do respect him.

On the participation of urban pioneers in the struggle for the socialist transformation of the Ukrainian countryside.