Peter lives happily with his cat until one day a mouse appears. Peter tries to teach the animal how to catch mice. But it is playful and interested in everything but lessons.

When the Nazis took power, the Jewish artist Leo Haas (1901-1983) was arrested in his Czechoslovakian hometown. He spent the next six years in different concentration camps and became known for the paintings he did in the Theresienstadt camp. This film presents Haas as a political artist and resistance fighter and celebrates him as a socialist caricaturist dedicated to the GDR.

Uli has found an old book in the attic of the Kulturhaus that tells of the exploitation of the peasants by the feudal lords. He tries to imagine how the robber barons would fare in a socialist village. Then two of this type step out of a dusty picture and Uli joins them on their way to the village. There they fail miserably with their overbearing behavior, and even a break-in turns into a failure.

Knurri, the little rabbit, and his family want to sell eggs at the market. Knurri takes his sweet time and discovers too late that he lost some eggs to the hungry badger. Nobody wants to buy eggs from the rabbit family. Only when Knurri suggests to color the eggs does business takes off and everybody is happy.