The film uses documents from the film archives of the Soviet Union. Chronicle. Industrial enterprises of St. Petersburg (Petrograd). 1914-1917 Russian soldiers in the trenches. Explosions of artillery shells. German artillery. Destroyed buildings in Riga. German cavalry enters the city of Riga. Fraternization of soldiers at the front. The soldiers are walking along the road. Combat operations of Russian and German troops. February - October 1917 Demonstrations in Moscow and Petrograd, including demonstrators at the monument to Alexander III. The queue at the grocery store. Soldiers shoot down the symbols of royal power with rifle butts. Demonstration on May 1, 1917. Troop parade in June 1917. Members of the Provisional Government, representatives of the allied armies on the balcony, watching the parade. Exchange building in Petrograd. People at the stock exchange building. State meeting at the Bolshoi Theater in Moscow. Cossacks and cadets guard the building. At the building: M. V. Rodzianko, A. M. Kaledin, A. F. Kerensky, N. S. Chkheidze, N. M. Kishkin. L. G. Kornilov in a group of officers. The movement of the detachment of cadets. The women's battalion of the Provisional Government is passing by. Red Guards and sailors on the streets of Petrograd. Members of the Baltic Fleet headquarters. P. Dybenko (close-up). Barricades at the Winter Palace. Buildings damaged by artillery fire. Funeral of the victims of the revolution. The film also includes: photographs, portraits, reproductions of articles and letters of V. I. Lenin, newspaper reports illustrating events, maps of military operations, diagrams of the economic situation in Russia.