Detective McFlare is certain that the diamond thief who is currently terrorising London will come after the Queen's diamond next. But how can he protect the gem from an enemy described by guards' dogs as a 'shaggy-haired gnome who can teleport himself'?

Animated series about a young guinea pig and her little brother, who look to solve police investigations. A prestigious diamond on display at the British Museum has just been stolen and the theft bears the signature of Warragul, the infamous diamond gnome. The problem is that the criminal in question is still imprisoned in the high-security section of Greenside.