The protagonists of the film are three brothers: Eino, Aho and Laje. The brothers live from the cultivation of the family land. Eino works from dawn to night. Aho likes to spend time playing at a nearby inn. Laje once helps Eino, and once accompanies Aho. Once Aho gets cheated by playing dice and losing his family land. The brothers set off in search of a job. They reach a road fork. Eino wants to go left, Aho to the right, and Laje agrees once with one, once with the other brother. The brothers, unable to convince each other for their reasons, start a great quarrel.

The two twins, Jacek and Placek, start out as cruel and lazy boys whose main interest is eating, eating anything, including chalk and a sponge in school. One day they have the idea of stealing the moon; after all, it is made of gold.