1 plot. - Chelyabinsk Tractor Plant: workshop of the plant; Stalingrad Tractor Plant: batch of finished tractors; Kharkov Tractor Plant: tractors are leaving the workshop. Gorky Automobile Plant: car assembly; finished cars leave the workshop; Factory "Krasny Putilovets": cars and buses manufactured at the plant, drive through the streets of cities. 2 plot. - Moscow Automobile Plant im. Stalin: workers work at lathes; plant worker Timofeev at home with children. 3 plot. - The pioneers of Bataysk station are checking the wagons with grain for cracks in the wagons. 4 plot. - A pioneer of one of the villages of Rostov-on-Don, a participant in the rally of sentinels of Ukraine, returns to the village, tells the guys about the rally. Pupils of the rural school in the classroom, among them a rally participant - Mitya Gorodnenko. 5 plot. - Moscow Theater for Young Spectators: spectators at the play "Suitcase".