A film about the life and heroic struggle of the General Secretary of the Communist Party of Chile, Luis Corvalan. Demonstrations in the USSR, England, France, Italy, USA, Mexico, East Germany, Cuba. L. Corvalan talks (synchronously) about the difficult paths of the formation of the people's power. Corvalan's son Luis Alberto shares his impressions (synchronously): about his father, about his family, the Chilean people. Visual evidence of the barbarism of the Chilean junta - says (synchronously) the famous architect Miguel Launer, a prisoner of the Dawson death camp. His drawings, made in concentration camps and prisons, telling about the firmness and optimism of L. Corvalan. Corvalan's trips to the Soviet Union; events related to the awarding of the Lenin Prize "For Strengthening Peace Among Nations". Excerpt from L. Corvalan's letter to his son Alberto.