A film about the history of the development of the Moscow region. Industrial areas. Factories: "Electrostal", "Novo-Kramatorsk", Stalinogorsk chemical plant, Voskresensk chemical plant, Lionozov car building, Trekhgornaya manufactory and others. State farms, collective farms; institutions of public education, culture. Cities: Kolomna, Noginsk, Podolsk, Dmitrov, etc. Harvesting of potatoes in the collective farm named after the Red Army; Heroes of Socialist Labor, brigadier N.P. Queen and link V.I. Dianova in the field. The "Flame" collective farm in the Ramensky district. Milkmaid O.I. Prozorova milks a cow.