1 hour - Yenisei River. Krasnoyarsk hydroelectric power station. DniproHES. Leningrad NPP. Moldavskaya GRES. Zaporizhstal plant. New buildings in Tashkent. Chronicle: devastation of the 1920s, village. Plowing, refugees, peasants in carts, workers unloading the ship, working at the dock, Kalinin talking with the workers. Chronicle: Volkhovstroy, Volkhovskaya hydroelectric power station, the dam of the Dnieper hydroelectric power station. Chronicle: peasants stack hay, construction, first equipment, a bridge across the Dnieper. Rolling shop. Radio plant. Television factory. Automobile plant. Sunflower, corn fields. Cows. Livestock complex in Moldova. 2 hours - Metro station (entrance, turnstile, escalator, train). Winter pool. Skating rink "Medeo". Summer ice rink. Beach. Surgeons for the operation. Supermarket. Reading room of the Institute. Children play in kindergarten. New buildings in Vilnius. DniproHES. Moldavskaya GRES. Leningrad NPP. Substations. Manuscript of V.I.Lenin's letter to Krzhizhanovsky. The main shield of the Unified Energy System (UES). Dubossarskaya GRES. Moscow at night. Dispatchers at work. Professor Venikov in the laboratory. 3 hours - Power transmission line supports. Sea bay. Tidal hydroelectric power station. Pipeline. Moldavskaya GRES. Leningrad NPP, construction of the 2nd stage of the power plant. The Yenisei River. The village of Shushenskoye. House of V.I. Lenin. Krasnoyarsk hydroelectric power station. Construction of the Sayano-Shushenskaya HPP.