Demonstration of youth on Red Square on the International Youth Day. On the government rostrum - 1st Secretary of the Moscow City Committee and Moscow City Conservatory A. Shcherbakov, Deputy of the Supreme Soviet of the USSR E. M. Yaroslavsky, member of the Presidium of the Supreme Soviet of the USSR N. Shvernik, Marshal of the Soviet Union S. M. Budyonny. A column of Spanish children is walking along Red Square. Portraits of Lenin and Stalin on the building of St. Basil's Cathedral. The latest achievements of Soviet technology in the mechanization pavilion at the All-Union Agricultural Exhibition. Special construction vehicles operate on the Sinarskaya - Chelyabinsk road section. Miner, Stakhanovite Gurnonogov works in the face. A train loaded with coal passes along the railway track. Lukyanenko, a railway worker, deals with young workers at home. Trackmen on a bicycle flaw detector go around the railway sections and fix defects.