Italian police inspector Coliandro — an ignorant, boorish, but fundamentally kind-hearted oaf, whose entire worldview is informed by American cop movies — protects the good citizens of Bologna, routinely saving the day and foiling the plans of evildoers of all sorts by a combination of dumb luck and genuine bravery, while always falling hopelessly in love with the woman at the center of the case.

In 1970 pornography was passed in Denmark. Cinematographer Werner M. Lenz has gone there two years later. He wanted to document for the Germans what was free there now. But the embarrassing conversations with prostitutes didn't manage it.

The pony hotel has just been opened, but so far no guests have arrived. Dick gets Ralf to design a brochure about the hotel. The girls and Ethelbert then lead the village children on horseback to Lübeck, where they all distribute the brochure - not knowing that Dalli has added some embellishments to the text.

The Immenhof has been closed by officials, awaiting auction. In the meantime, Angela has died, so Jochen is now a widower. Oma Jantzen and Angela's younger sisters Dick and Dalli live with him in the forester's house. In order to save the manor house, Dalli has started a "pony circus" with the village children in the barn, while Dick has given up hope of Ethelbert ever returning.

An aging truck driver finds smuggled money and becomes involved with a hijacking crowd.