Moscow. Kremlin. One of the streets, squares. Muscovites buy newspapers at the kiosk. The agitator speaks from the truck. A rally at the Dynamo plant; collective farmers work in the field. The agitator is conducting a conversation. The crew of the passenger ship "Pyotr Tchaikovsky" is studying the electoral law. Voronezh. Pre-revolutionary footage: Dvoryanskaya st. 1911, residents of the city, tram movement, cabs. Voronezh 1937: tramway traffic, streets, office buildings, the University building; passers-by; Industrial landscape. Steel-making process at one of the plants. Minecarts in one of the mines. Stalingrad Tractor Plant. Tractor "Stalinets"; A workshop of one of the machine-building plants. Gorky Automobile Plant. Cars "M-I". Airplanes are flying, tanks are moving; Military parade on Red Square.