Danny and his brainy buddies launch a bumbling investigation to reveal the truth about Santa Claus. But they have no clue that St. Nick is real, and he's making toys right in their hometown.
Count Dracula transforms Shaggy into a fuzz-faced werewolf and there's only one way he will change him back. Scooby-Doo and Shaggy must win a creepy cross-country race against a hot-rodding horde of sinister celebrity monsters.