Film dedicated to the 70th anniversary of the Great October Socialist Revolution. Newsreel: Nicholas II on the territory of the Moscow Kremlin (1912), playing tennis on the tennis court. Revolutionary soldiers, sailors on the streets of Petrograd (1917). Filming by V.I. Lenin (1918-1920). The queue of people in the Lenin Mausoleum on Red Square. Newsreel: construction of hydroelectric power plants, Magnitogorsk Metallurgical Combine; drummer miner A. Stakhanov in the face of the mine. Construction of the Baikal-Amur Mainline. Cosmonauts Yu. A. Gagarin, VV Tereshkova, S. Savitskaya and others. Interview with Air Marshal, twice Hero of the Soviet Union E. Savitsky about the air parades in Tushino, the beginning of the Great Patriotic War. War newsreels: blockade of Leningrad; meetings of Soviet soldiers returning from the front after the Victory; people on Red Square, festive fireworks in Moscow in honor of the Victory over Nazi Germany. Machine operator of the virgin land farm named after Amangeldy N. Gellert at work on a tractor, at a session of the Supreme Soviet of the USSR, at home. Pianist A. Sultanov performing at the VIII International Tchaikovsky Competition. International Forum "For a nuclear-free world, for the survival of mankind", taking place in Moscow. Delegates in the hall, on the sidelines. Mikhail Gorbachev is speaking.