A creature called the Hodag of Horror attacks Crystal Cove. Meanwhile, Brad Chiles and Judy Reeves (Fred's real parents) have suddenly appeared along with a dog named Nova (whom Scooby has taken a fancy to). The Hodag is stealing precious jewels from all the famous. At the end, the original Mystery Incorporated are called together by none other than Pericles who has an unknown proposition for them that involves the new Mystery Incorporated.
Hodag of Horror/Roberto the monkey (in the power of Ned Fussbuster)