A film about the Second International Festival of Symphonic Music in Moscow. Mountain landscape. St Basil's Church. Mikis Theodorakis on the sidelines. Festival participants. Moscow city. Kremlin. T. Khrennikov is speaking. Newsreel: the destroyed city. Monument to Soviet and Norwegian troops. Newsreel: dispersal of the demonstration. Soldiers of the People's Army of Cuba are walking. Listening to E. Santos. Newsreel: the crossing of the infantry and artillery. T. Khrennikov plays. Streets of Washington. Newsreel: an atomic explosion. Hall of the Conservatory. Streets of Budapest, Prague, Helsinki, Athens, Moscow. The building of the Council of Ministers of the RSFSR.