Yogi, Boo Boo, Wally Gator, Snagglepuss, Magilla Gorilla, and several other Hanna-Barbera stars travel the world in a magical flying ship named the S.S. Jolly Roger, searching for treasure, all for a good cause. Their enemies, Dick Dastardly and his snickering sidekick Muttley, try to get the treasures for themselves. Produced for The Funtastic World of Hanna-Barbera.