The city of Voroshilovsk. Agronomist-breeder A.I.Derzhavin, the creator of a new variety of perennial wheat, at work. Experimental field, laboratory. Kabardino-Balkaria. Watering a corn field with an experimental sprinkler. Lomatovsky children's collective farm sanatorium. Children swim in the river, do physical exercises, play billiards, dance, sleep. Mordovia. Members of the DOSAAF flying club. Pilots in the classroom, in flight. The first flight of V. Lazareva. The Voroshilov Naval Academy of the Red Army. Students in the classroom, including NP Egypko, NI Vinogradov.