A film about the life of the USSR pilot-cosmonaut Yu. A. Gagarin, who made the first flight into space in the history of mankind on the Vostok spacecraft on April 12, 1961, and about the time that shaped his character and determined his fate. The film is edited from film documents and photographs taken during the life of Yu. A. Gagarin, filming of the places where Yu. A. Gagarin lived, documents and memoirs of relatives and friends (synchronously) and frames of documentary chronicles illustrating the stages of practical cosmonautics in the USSR under the leadership of S. P. Koroleva: the launch of the first liquid-fueled rocket in 1932, the assembly of the spacecraft (50s), the cosmonaut corps undergoes a medical examination; cosmonaut training at the Cosmonaut Training Center; Yu. A. Gagarin jumping with a parachute during a training flight, launching a spacecraft with a dummy, launching a spacecraft with Yu. A. Gagarin. Among the cosmonauts - Andriyan Grigorievich Nikolaev.