Because of the stepfather of his beloved girl, Makar goes to prison. Tanya leaves home and gets a job at a shipyard.
A fire starts on board a foreign ship. Sailors of the Soviet merchant fleet come to the aid of those in distress in the ocean.
About the life and work of the professional revolutionary Bolshevik F.A. Sergeev (1883-1921), known under the pseudonym Artyom. The film takes place in the period from 1905 to 1921 in Kharkov.