On a special after-hours tour of the Coolsville Aquarium, the gang tries to catch the Fishy Phantom, who has stolen the aquarium's rare rainbow flounder.
First Shaggy and Scooby investigate a Romanian foreign exchange student whom they believe to be a werewolf, and then the friends travel to Hawaii to take part in a bicycle race, only to be confronted by a tiki figure threatening doom.
It is a crisis for Krypto as he and his friend, Kevin, travel to different dimensions, but will everyone they meet be as friendly and helpful as the Super Pup himself?.
When Velma and the gang get a sneak peek of the rare Rainbow Flounder during an after-hours tour at the Coolsville Aquarium, a Fishy Phantom shows up and steals the exhibit.
