While exploring Blue Rock Isle, Ash, Misty, and Brock encounter a Chinchou – a pokémon that is both a water and electric type. Misty thinks the Chinchou is cute and tries to capture it only to realize the Chinchou has an owner. Dayton, the Chinchou’s owner, arrives an introduces himself. The friends learn that they have arrives on the island in time for the annual Chinchou migration to their nesting grounds. As the Chinchou parade toward their nesting grounds, Team Rocket disrupts their route with the intention of capturing and using the pokémon. Will our friends be able to get the Chinchou to their destination on time?