A film about Pavel Klushantsev (1910–1999), an outstanding Soviet director of the Lennauchfilm studio, creator of popular science films about space, who predicted the development of cosmonautics decades in advance. Using unique documentary footage, the film tells Klushantsev's biography. He lived through revolutions and wars, professional success and separation from his beloved work, but never lost faith that humanity has unlimited possibilities if it wants to create a better world.