A film about the celebration of May 1 in Moscow on Red Square. Demonstration on Red Square. Party and government leaders on the podium of the Mausoleum. Among those present: Leonid I. Brezhnev, K. T. Mazurov, B. N. Ponomarev, M. S. Gorbachev, Yu. V. Andropov, K. U. Chernenko, N. A. Tikhonov, A. Ya. Pelshe , D. F. Ustinov, A. A. Gromyko, M. A. Suslov and others. Leonid Brezhnev welcomes the demonstrators from the podium.