A band arrives late at the competition. They try to find the jury and show their performance.

The film tells about the childhood and youth of the wife, friend and military ally of the founder of the country of the Soviets Nadezhda Konstantinovna Krupskaya. The main attention in the film is paid to the participation of a young revolutionary in the organization of the struggle of the workers of St. Petersburg for their rights, against the autocracy.