Pokémon: Best Wishes (Black & White) · Best Wishes Season 2: Decolora Adventures arc
BW135 · Mystery on a Deserted Island!
お宝の謎！無人島アドベンチャー！！
Synopsis
What happens.
As Alexa is looking at the Frond Island, Ash, Iris and Cilan meet up with her and she shows the group, a secret-coded treasure map and informs that she is going to find the treasure.
Synopsis adapted from Bulbapedia's BW135 entry, used under CC-BY-NC-SA 2.5.
Story arc · BW109-BW144
Best Wishes Season 2: Decolora Adventures.
Post-league filler bridging to XY. Cast tours the Decolora Islands. Iris and Cilan get more spotlight; less consequential than Episode N.
Read the full Black & White guidePokémon featured · 20
Who appears.
Linked entries open the species page on the Pokédex. Items without a sprite (alternate forms, regional variants, generic group references) fall back to a name pill.
More from this arc
Other episodes in Best Wishes Season 2: Decolora Adventures.
Episode synopsis from Bulbapedia, CC-BY-NC-SA 2.5. Editorial context (arc affiliation, cultural moments, character signatures) hand-verified May 2026. Pokémon, character names, and series titles © Nintendo, Game Freak, Creatures Inc., The Pokémon Company, OLM Inc. This is an unofficial fan reference.