1 plot. The dining room of the Moscow plant "Krasny Bogatyr". The head of the canteen, Nesterova, talks to the lunch distributor. 2 plot. Motor-building plant. Workers at work in the workshop for the manufacture of a balloon shell. Assembly of motors in the workshop. 3 plot. Pilots of a long-range aviation formation subscribe to the 2nd state military loan. 4 plot. The scouts go on a combat mission behind enemy lines along the Kuban floodplains. The scouts are returning from a mission with a captured German. The prisoner is being interrogated. 5 plot. Anti-aircraft gunners are firing at enemy aircraft. The downed German plane burns, falling to the ground.