Welcome, or No Trespassing

Pioneer Kostya Inochkin, while in a pioneer camp, swam across the river and found himself in a forbidden territory, for which he was expelled by his boss, Comrade Dynin. Not wanting to give his grandmother a heart attack with his early arrival, the boy secretly returns to the camp, where the pioneers also secretly keep him and take all measures to prevent his parents’ day from taking place. After all, it is on this day that Kostya’s grandmother will show up at the camp...