A film about the work of Soviet and Czechoslovak specialists in the field of grain breeding. Bakery in Prague: buns are prepared in molds, ready-made buns go along a conveyor. Stages of growing bread: sowing, harvesting. Says the director of the Mironovsky Institute of Breeding and Seed Production. Zhivotkov L.A. Experimental fields of the Institute. Director of the Institute of Breeding in Czechoslovakia J. Lekesh. Breeders L. A. Zhivotkov and Chebakov in the field. Chebakov is speaking. Yu. Kosov speaks about the advantages of certain varieties of cereals. Greenhouse. Barley field. The genetic fund of cereals in Leningrad: racks with boxes. Examination of the grain embryo under a microscope. Cooperative "Slusovice" (Czechoslovakia): control room, fields, fertilizer storage. Joint work of breeders from Czechoslovakia and the USSR to develop new varieties.