Four friends - Aziz, Dima, Rano and Rustam are relaxing in a pioneer camp. One day they see the guys from the village with old cartridges found in a cave. Friends decide to reveal the secret of the cartridges...

Four boys and young Aziza live with the dream of building a racing car. They had to work for a whole year. And when, during the first tests, the car caught fire, the kids found the courage to acknowledge their mistakes, listen to the advice of adults, and start all over again...