Ash, Pikachu, and their friends come to a desert city by the sea. Here they meet the Mythical Pok�mon Hoopa, which has the ability to summon things�including people and Pok�mon�through its magic rings. After a scary incident, they learn of a story about a brave hero who stopped the rampage of a terrifying Pok�mon long ago. Now, the threat that has been bottled up for years is in danger of breaking loose again.