Animation: map of the USSR showing the country's oncological institutions. The building of the Oncological Research Center of the USSR Academy of Medical Sciences. Surgeons perform an operation on a cancer patient. Treatment of cancer patients by irradiation of the "Rokus" apparatus, chemotherapy, the method of freezing the affected tissues, and physical therapy for convalescents. A visiting team of doctors conducts a preventive examination of the population of remote areas of the Ashgabat region (Turkmenistan). Cytological research in the laboratory of the Oncological Center; a doctor at a microscope; computing center hall; programmer at the control panel of an electronic computer. Doctors in the laboratory conduct experiments on the effects of carcinogens on the body of experimental animals. Interview with Academician N. N. Blokhin about the anti-cancer service in the USSR. Meeting of the International Conference of the Member States of the Council for Mutual Economic Assistance on Oncology Problems.