1) The drifting camp of the Kuibyshev schoolchildren on the Volga: they are observing the weather, transmitting radiograms, going on skis to the city. 2) Border guards inspect the dog - Rex, owned by Moscow schoolgirl Emma Golgovskaya, take the dog to the border outpost. 3) The border guards of one of the western outposts are examining the rifle, standing in formation in the yard of the outpost, shooting at targets, riding on horseback for reconnaissance. A border guard with a dog on patrol. 4) The writer S. V. Mikhalkov reads his poems among children.