The action takes place in 1979. Best friends Dimka, Mishka and Lena go to rest in the pioneer camp on the sea. They took also their favorite dog Sawa. In just one shift, the guys have to find out what the price of friendship is, to fight the bandits for treasure, to accidentally poison the director and get lost in the caves. And, of course, they are waiting for the first love with these Shakespearean passions.