Pokémon (1997)

S16E38 Mystery on a Deserted Island!

Title: Enigma of the Abandoned Isle! Plot: Alexa shares a tale with Ash, Iris, and Cilan about Yashi Island, a remote island where a pirate vessel met its fate ages ago, leaving behind a hidden treasure that remains undiscovered. Intrigued, the friends set out to explore the island, unaware that Team Rocket is hot on their trail, eager to claim the treasure for themselves.