Five boys at South Park High are nearing the end of their senior years. Many changes have occurred over the years, but none could split up the main four. But a new challenge has arisen. When a transoceanic trip goes terribly wrong, Stan, Kyle, Kenny, Cartman, and Butters find themselves lost and alone. Can they survive this as friends? Or will the pressure break them one by one?

There is trouble afoot aboard the St. Mystere-a prestigious ship that attracts all walks of life onto its gilded decks. With a phantom thief (and possible killer) after a famous, near priceless diamond, chaos and confusion runs wild. Now, an elegant detective with a secret must unearth all the skeletons from the closets before even more fall victim to the phantom thief! No romance