Pokemon: Season 0, Episode 12

0 - 12: Pokémon Ranger and the Temple of the Sea (Movie 09)

On thier way through the Battle Frontier, Ash and friends meet up with a Pokémon Ranger who's mission is to deliever the egg of Manaphy to a temple on the ocean's floor. However, a greedy pirate wants the power of Manaphy to himself.