Uncle Bill arrives at the Snuggles house, showing Snuggles a strange map of sorts. The map is examined, and tells the story of a strange casket that, when opened, causes strange and dangerous things to happen. Professor Emerald gets hold of the casket and causes mayhem wherever he goes, and Doctor Snuggles tries to catch up with the wizard. He meets the Space Wanderer, the one who has been looking for the casket for many years. They meet up with Professor Emerald at Emerald Ile, and attempt to bring back the casket before it's too late.