Nintendo
It all started with a legend passed down from the People of the Water...Somewhere in this world, there is a temple created by the People of the Water. The Sea Temple contains a hidden treasure, the Sea Crown, but no one has ever seen it because the temple is protected by a secret mechanism. So it drifts through the vast ocean undetected, waiting... waiting...Ash and Pikachu learn about the legend and meet Jackie, a Pokémon Ranger on a mission
...In the underground Diamond Domain, where many Carbink live, the Mythical Pokémon Diancie serves as Princess. The Heart Diamond that sustains the land is beginning to fall apart, and Diancie is not yet strong enough to create a new one. Can Ash and his friends help Diancie discover its true power and save the Diamond Domain?!
Rated: A