1syuzh. - North Caucasian Territory. Launch of the mine named after OGPU: operation of mine mechanisms, coal on a conveyor; rally. 2syuzh. - Moscow. Dynamo Stadium. Gathering of communists, Komsomol members, shock workers of Krasnaya Presnya. Speakers: E. M. Yaroslavsky, L. M. Kaganovich. Participants in the stands. 3syuzh. - Nizhny Novgorod. The movement of suburban trains, buses, tram number 6. Passengers at stops, stations, during embarkation, disembarkation, on the way, train cars, trams. Streets of the city, the village of Sormovo, traffic, pedestrians. 4syuzh. - Moscow. Railway electrification -d. transport. Northern Railway, Sofrino-Pravda section: workers are pulling wires, an electrical train is moving, installation of contact wires; the construction of the station pavilion, the movement of the electric train, the driver in the cab, the electric train at the Sofrino station, the station building; long-distance passenger train movement.