Alexa tells Ash, Iris, and Cilan about Yashi Island, a desert island where a pirate ship crashed years ago, and the ship's treasure has never been found. The group decides to investigate, and Team Rocket follows to get the treasure for themselves.
| Creator | N/A |
|---|---|
| Actor | Rica Matsumoto, Ikue Otani, Daiki Yamashita |
| Country | Japan |
| Production | Shogakukan Production |