Preparations are in full swing for International Snail Day and Brian is busy organising events for that afternoon’s celebrations. However, Dougal has more important things on his mind - his prized pie has been pinched! And he’s not the only one to have lost something: nearly everyone in the Enchanted Garden is missing a favourite possession. It seems as though there is a thief in their midst and Dougal the Dog-tective decides to identify who is responsible.