Moscow. 1931 year. A tram is passing through Red Square. Sukharev Tower. A cabby on the Komsomolskaya square. Market. People get on the tram. The first metro workers descend into the mine. Miners are working. Meeting of metro builders in the mine. People go down the escalator, get on the train. Moscow, 1967. Metro stations "Revolution Square", "Kropotkinskaya", "Arbatskaya", "Ryazansky Prospekt", "Komsomolskaya". Morning in Moscow. Entrance to the metro at the Kazansky railway station. Passengers pass the turnstiles, go down the escalator. Duty at the station. The driver in the train cabin. Passengers in the carriage read newspapers, books. Vacuum cleaners move around the lobby. The nurse checks the composition of the air. Subway scheme. Foreigners visiting the "Mayakovsky Square". Mosaic station decoration. Station "Revolution Square". Stations "Avtozavodskaya", "Kievskaya", "Taganskaya". Panels: "Russian hero", "flying plane", "cosmonaut". New district of Moscow - Kolomenskoye. Metro "Sportivnaya". People go to the stadium in Luzhniki. People in a cafe, near the Bolshoi Theater, the Hermitage. The subway dispatcher is at the control panel. Workers in the tunnel are checking the rails. Marble polishing.