Pokémon (1997)

S11E06 Nosing 'Round the Mountain!

Title: Exploring the Mountain's Secrets! Plot: Ash faces off against Alan, who is determined to help his Nosepass evolve into a Probopass by leveling it up at Mt. Coronet. However, Team Rocket intervenes, using mind control on the Nosepass after its evolution. Now, Ash and his friends must devise a plan to rescue the brainwashed Pokémon and restore its true self before it's too late.