Scooby-Doo and the gang are on the case when a mysterious lake monster starts scaring the guests at a summer resort in Erie Point, where Fred, Daphne, Velma and Shaggy…

Rick Riker is a nerdy teen imbued with superpowers by a radioactive dragonfly. And because every hero needs a nemesis, enter Lou Landers, aka the villainously goofy Hourglass.