Pokémon: Best Wishes (Black & White) · Best Wishes arc
BW048 · Battle for the Underground!
激走!バトルサブウェイ!! (後編)
Synopsis
What happens.
TRT continues to inhibit Ash and his friends from picking up their trail by deploying many ghost train decoys, overloading the subway sensors with phantom contacts. Pikachu and Axew are still trapped in their cages along with the stolen Poké Balls.
Synopsis adapted from Bulbapedia's BW048 entry, used under CC-BY-NC-SA 2.5.
Story arc · BW001-BW048
Best Wishes.
Ash arrives in Unova; meets Iris in Cilan's Striaton restaurant; trio formed. Pikachu battles return after Zekrom's lightning depowers him in the premiere.
Read the full Black & White guidePokémon featured · 13
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.
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.