Cat detectives Buckley and Bogey have barely advertised their new detective agency on the Internet when they receive a secretive email from a cat who claims she is in danger. Of course, the cat doesn't give any details, like who she is or what kind of danger she's in. Instead she mysteriously signs her name as P.A. and says she'll be at the St. Gertrude Cat Show on the weekend. To investigate, Buckley and Bogey soon find themselves at that very cat show. And, as part of their cover, Buckley enters the Cutest Family Pet Competition and Bogey enters the Agility Competition. Before they know it, they come nose-to-nose with a real, live Princess. One who even wears a diamond collar! That's when the boys uncover a case they can dig their claws in to, especially when they find evidence of a cat burglar stealing jewelry from the pet parents. But the boys really get their fur ruffled when they discover that P.A. is definitely in danger, and before long, so are they... Holy Catnip!