On the night of the murder of a high-ranking official, the police apprehend a group of young men on motorbikes drinking near the scene of the crime. Captain Rogalev and investigator Avdeev are ordered to solve the murder at any cost.

It follows political events in Russia at the beginning of the century, during the birth of the Social Democratic Party, among the first fighters of which was Vera Protasova, the daughter of a lawyer who defended Narodnaya Volya members in court.

The adventures of a high school student Igor who is helping Reds during the October Revolution in Russia.

class conflicts in a school class