Scooby-Doo and his friends from Mystery, Inc. have been especially good this year. So as a special treat, Santa's invited them to visit him at the North Pole! Scooby, Shaggy, Fred, Velma, and Daphne can't wait to meet the one and only Santa Claus. But when someone steals Santa's magic sack of gifts, it looks like there's a mystery to solve!