All dogs like mud. All dogs like biscuits. This is a fact. But when mud and biscuits happen at the same time, Jack knows there is skulldoggery in the air. Who is mudding the show dogs of Doggeroo?

Jack Russell investigates when all of the dogs who live in Doggeroo are hiding under their beds in fear.

Although preoccupied with Sarge's illness and other distractions, Jack Russell finds time to investigate a case of kitnapping.