Case 53: The Wedding of the Year! Marie's father and Tessa are getting married. A wedding planner is hired because it is going to be a grand celebration at the Grevenbroich villa. Marie enthusiastically helps with the preparations, but things keep going wrong. It becomes clear that something is amiss when her father gets injured! It's a case for the three detectives. Can they save the dream wedding?

Case 54: Lights, camera, action! Kim, Marie, and Franzi are extras in a crime film where Marie's father, Helmut Grevenbroich, plays the lead role. But what starts as a game turns serious: two saleswomen are robbed at the filming location, the Pulitzer department store, and Helmut Grevenbroich is the prime suspect! The three of them set out fiercely to find Mr. Grevenbroich's doppelgänger.

Case 55: Kim and Marie have caught Franzi's enthusiasm for horses. Together, they spend a week in a wild horse reserve. As soon as they arrive, strange things start happening: two horses break loose, and someone has even tried to poison the animals. Finally, a wild foal disappears without a trace. The three immediately begin their investigation. Is the foal in danger?.