Scooby and the gang are ready for a fun afternoon in the new Viking Village at Happy Sally Land, a nearby theme park. Scooby and Shaggy can't wait to ride the Nordic Nor'easter, the rip-roaringest roller coaster around. But when an angry Viking scares away all the visitors, it looks like no one will ever get to ride the new roller coaster. It's up to the gang from Mystery, Inc. to track down the Viking before his villainy closes Happy Sally Land down - forever.