Sokrat Kara

A little girl named Katherine saved one boy's life during the bombing in Leningrad while under the Siege in WWII. The boy cannot speak yet. So she gave him a name Seryozha and provided him with food and care. She was later adopted by the boy's father, who recognized his son.

The characters of the picture are a large family of hereditary shipbuilders. Three generations of the Zhurbin live under one roof: grandfather Matvei, his son Ilya, three sons of Ilya — Aleksei, Anton and Viktor. In a short time, representatives of the fourth generation are born. The share of the youngest son of Aleksei fall the most severe life tests. The background for family conflicts is the reorganization of production. All Zhurbin's have to change their profession to move on.

The film is set in old Yuzovka on the eve of 1905. After searching the Kolchugins' apartment, where money from the strike fund was hidden, the police arrest Anna Kolchugina and her lodger, the miner and revolutionary Kuzma. Anna's teenage son, Stepan, is forced to go to work in the mine. There he learns about the existence of the revolutionary underground and joins its struggle.