Celebration of May 1st in Moscow. Demonstration and parade of athletes. Demonstrators give interviews, including foreign students studying in Moscow. Members of the government on the podium of the Mausoleum, among those present: Leonid Brezhnev, NV Podgorny. At the guest tribune cosmonauts: A. Leonov, G. Grechko, A. Eliseev and others. Behind-the-scenes songs sound: "Moscow-May", "Wide is my native country", "Hands of the workers", "Long live our country!", "Workers of all countries, unite!"