Pokémon — Episode 6: Nosing 'Round the Mountain!

You are watching the episode Nosing 'Round the Mountain! Ash battles Alan, a trainer that wants his Nosepass to evolve into a Probopass, but it can only evolve if it levels up in Mt. Coronet. When it does, Team Rocket brainwashes it and now Ash & Co. have to get it back.