A small band of robbers has been living at Gut Aiderbichl in Osnabrück for a year now. Ronja, Al Capone, the beautiful red tomcat, robber Hotzenplotz and Adele roamed through their young lives and were discovered at a recycling center. People complained about the strays and so the community asked to take the four cats in at Gut Aiderbichl. They have to learn that there are people who regard them as fellow creatures and mean well by them: they are neutered, get enough food and have a warm home.