Whopper is taking his niece and nephew to the museum. Along the way, he tells them the origin of Puppy Power, the ability of humankind to understand the Pound Puppies and Purries. In the Dark Ages (historiography) (specifically 958 AD), King Arthur and his dog Digalot came across a stone which contained both the mythical sword Excalibur and the magical Bone of Scone. While Arthur pulled the sword from the stone, Arthur's dog Digalot pulled the Bone of Scone from the same stone, and soon afterward Arthur discovered that the dog could talk. Sir McNasty, who had witnessed the withdrawal of Excalibur and the Bone and Arthur's coronation as King of England, planned to conquer the world by retrieving the Bone. However, it was kept hidden by the giant guardian, Big Paw.