The film provides information about the discovery by Professor A. L. Chizhevsky of the influence of solar activity on historical events on Earth. Newsreel of 1918. V. I. Lenin. Newsreel of the 1920s-1930s. Streets of Kaluga. House-Museum of K.E. Tsiolkovsky. Says (synchronously) a museum employee. Photos of A. L. Chizhevsky in his youth, with an easel in his hands, during his imprisonment. Pictures of A. L. Chizhevsky. Newsreel, photographs of 1931: in the laboratory of A. L. Chizhevsky. Camp manuscripts of A. L. Chizhevsky's scientific works. The grave of A. L. Chizhevsky. In the film they speak (synchronously and behind the scenes) about A.L. Chizhevsky: Yu.Bordichenko, V.L.Bolovanov, E.B. Kuznetsova, P.G. Tikhonov, Yu.G. Popov, B.M. Vladimirsky and others.