Ash and Pikachu meet Lizabeth, a descendant of the People of the Water, and learn about their legend. They meet Jackie, a Pok�emon Ranger on a secret mission to protect a Manaphy egg, also known as The Prince of the Sea, and find the Sea Temple as well. The Phantom plans to obtain the Sea Crown and take over the world, but he needs the Manaphy egg first. Now Lizabeth and Ash must help Jackie protect the egg and stop the nefarious pirate!

Jim is a young man who grew up reading tales of pirates and adventures on the high seas, and longs for similar excitement in his own life. One day a dying man hands him a map and gives him a warning. Upon careful examination, Jim realizes the map charts the course to Treasure Planet, a distant world where hundreds of space pirates have stashed their loot. Jim is certain this is the adventure he's been dreaming of and sets out to find the fabled Treasure...