Ep. 167: Ash and friends visit a castle clinic using Pokémon while Team Rocket gets trapped in a maze.

167

Ash and his companions arrive at a castle that has been converted into a medical facility where Pokémon assist in treating patients. Team Rocket arrives at the location and inadvertently becomes trapped inside a complex maze located beneath the castle alongside Brock. After the group manages to escape the underground labyrinth, a Zubat undergoes evolution into Golbat. This transformation occurs specifically to prevent Team Rocket from stealing Pikachu. The events highlight the unexpected consequences of the villains' actions and the protective instincts of the Pokémon involved in the situation.