A film about the greatest biologist of the 20th century N.V. Timofeev-Ressovsky. Newsreel: NV Timofeev-Resovsky at the Congress among scientists. Newsreel of the Second World War. Speak (synchronously) G.A.Zedgenidze about the period of N.V. Timofeev-Resovsky's work in Berlin during World War II, D.I.Semenov (synchronously and behind the scenes) about the fate of N.V. Timofeev-Resovsky in post-war years in prison, students of N.V. Timofeev-Resovsky, among them E.N.Sokurov about the fate of a scientist. Speech by T. D. Lysenko at the session of the All-Union Academy of Agricultural Sciences in Moscow. Speech by Academician Present at the Tauride Palace in Leningrad on the results of the session. Central House of Writers. Discussion about genetics. Kirpichnikov (synchronously) and others about the novel "Bison" by D. Granin and the life of the protagonist of the novel by NV Timofeev-Resovsky. Photos of O. Vogt, N. V. Timofeev-Resovsky in his youth, while working in the laboratory. The streets of Berlin in the 20s. NV Timofeev-Resovsky speaks (synchronously and behind the scenes) about his work in Germany. Photos: N. I. Vavilov and N. V. Timofeev-Resovsky with colleagues in Berlin. The film provides information about the fate of some students of N. V. Timofeev-Resovsky, who were repressed in the 30s. Newsreel. Building of the first agricultural exhibition. Pioneers are tying a tie to I. Michurin. Interviews with people who were helped during the war by NV Timofeev-Resovsky. Photos of N. V. Timofeev-Resovsky with his wife and children. A. N. Timofeev-Resovsky says (synchronously) about his father. Moscow city. House of Scientists. On the presidium S. I. Vavilov, T. D. Lysenko, L. A. Orbeli. An employee of the archive takes out a folder with documents of N.V. Timofeev-Resovsky. Photos of N. V. Timofeev-Resovsky with students in Miassovo. Folder with NV Timofeev-Resovsky's secret report on the work carried out in May 1954 in the Urals after the release of radioactive substances. Pupils N. V. Timofeev-Resovsky, his son and the film crew sign a statement on the rehabilitation of the scientist. The film features songs performed by N. V. Timofeev-Resovsky, the Don Cossack Emigrant Choir under the direction of S. Zharov.