Moscow. Big theater. Evening dedicated to the 10th anniversary of the Comintern: the presidium, participants in the meeting, speakers: O. Kuusinen, V. Ya. Molotov, V. Kolarov (Bulgaria), W. D. Heywood (USA), in the presidium: B. Reinstein. Novorossiysk. Extraction of cement stone at the quarries of the "Proletary" plant: workers in the quarry, trolleys moving on rails, an overhead road; hulls, the berth of the plant, a foreign ship at the berth, mechanized loading of bags of cement onto the ship. Samara. Agricultural inventory warehouse. Loading plows and harrows. The movement of the sledge train. Bezhitsa. House of Culture: adults, children play chess, checkers, preschoolers in the nursery with a teacher. from. Novlyanskoe, Ivanovo-Voznesensk province. The building of the new school. Schoolchildren at the building. Leningrad. Flight school: entrance examinations, medical commission. Moscow. "During the winter maneuvers of the units of the Proletarian Division": the Red Army men are walking along the road, running across the field, with skis, at the guns, with a machine gun, at the field kitchen; commanders observe maneuvers, tanks move.