Stinki has seen the latest episode of Detective Cocker and now wants to solve cases too. It doesn't take long before he has one: Jolly Roger the pigeon has disappeared. But it's not just Stinki who sets off in search of him, but also the begrudging Purzel, who wants to impress Sanchichi. A race begins to see which of the two will be the first to find Jolly Roger.