Action! The famous stuntwoman Cat appears in Helmut Grevenbroich's latest film. It's incredible how the cool superheroine effortlessly handles even the most dangerous climbing scenes! Kim, Franzi, and Marie are thrilled and already feel like they're in an action movie themselves. During the filming, a series of break-ins occurs in the city. Is it just a coincidence? The three quickly sense a new case. As always, each detective approaches the investigation in her own unique way. What do the friends uncover? Together, they make a strong team and solve every case.