A film about the space flight of A. Nikolaev and P. Popovich on the Vostok-3 and Vostok-4 ships in August 1962. The film uses footage made in space by A. Nikolaev and AP. Popovich. Cosmonauts A. Nikolaev and P. Popovich in training at the Cosmonaut Training Center, medical examinations. Cosmonauts during preparation for a flight at the cosmodrome; in the cockpits of ships. Starts of ships. Space surveys of the Earth. Flight Control Center staff at the instruments and consoles. Astronauts in the cabins of spacecraft in space weightlessness. The landing of the astronauts. Rally in the city of Karaganda. Press conference of cosmonauts in Kuibyshev. Yuri Gagarin is present. Solemn meeting of the cosmonauts in Moscow. Demonstration and rally on Red Square. On the podium of the Mausoleum: A. Nikolaev, P. Popovich, L. I. Brezhnev, A. I. Mikoyan, Y. Gagarin, G. Titov. Gala reception at the Kremlin. Rewarding the astronauts. Chronicle. A. Nikolaev and P. Popovich on vacation on the Black Sea coast, on a ski trip in the woods. P. Popovich plays hockey at home with his family.