The film is dedicated to the 20th anniversary of the socialist revolution in Bulgaria. Meeting of Soviet troops on the Danube in 1944 Meeting of partisans. Soviet troops at the top of Shipka. G. Dimitrov's meeting in Sofia. Soviet ships deliver cars to factories. The peasants are opening the borders. Resorts: "Golden Sands", "Solnechny". Ballet competition in Varna. Among the participants: E. Maksimova, V. Vasiliev. Meeting of the writers of the Balkan countries in the "Vranya" palace. Lesson of students at the university. Mausoleum of G. Dimitrov in Sofia. T. Zhivkov speaks at the congress of the Bulgarian Communist Party. Agricultural work. Construction of a metallurgical plant and other industrial facilities. Launching a new vessel.