The spaceship is flying over the Earth. Earth from space. Central hall of reference clocks of the Soviet Union. Moscow. Maternity hospital. Architects Elena and Evgeniy Miko at the maternity hospital with their newborn son. Baikal-Amur Mainline. Road construction. Builders Olga and Viktor Klemenovs leave the maternity hospital with a newborn. Friends of the Klemenovs are drinking champagne. Tyumen oil and gas field. Drilling rigs. Atommash plant. Steel-making shop. Neftekamsk. Sayano-Shushenskaya HPP. House-Museum of V.I.Lenin in Shushenskoye. Central control panel of the energy system of the USSR. Construction of a nuclear power plant in the town of Taks in Hungary with the help of the USSR. Kola nuclear power plant. Shevchenko. Nuclear desalination station. Camels in the desert. Research Institute of Experimental Surgery. Atomic heart stimulant. Pressure chamber - operating. Academician B.V. Petrovsky at the operation. Thermonuclear installation "Tokomak". Construction of the Kamskaya hydroelectric power station. Industrial robots. Doctor of Technical Sciences EI Yurevich gives interviews (synchronously). Assembling watches at a watch factory in Petrodvorets. Harvesting grain harvester. Harvesting cotton. Cosmonaut V. Shatalov in training. Press conference of V. Shatalov, A. Leonov, V. Ryumin, L. Popov. A. Leonov gives interviews (synchronously). Construction of residential buildings in the city of Severobaikalsk. Children's surgeon S. Ya. Doletsky is talking with a girl, giving interviews (synchronously). Children and adults go in for sports. Leonid Brezhnev speaks (synchronously).