Scooby-Doo and the Gang head to Hawaii for a big surfing contest that is disrupted by the grumblings of a nearby volcano and the disappearance of a surfing hottie. Scooby-Doo and the Gang romp around the jungle, snorkel, paraglide and surf their buns off, as they battle the mysterious appearance of the "Wiki-Tiki," trying to solve the mystery before the volcano erupts.