Ep 41. Playing the Leveling Field

Ash and his friends continue their journey towards the Sinnoh League and stop at a local Pokémon Center to rest and train. Ash trains with Pikachu and Turtwig, while Dawn is practicing with Pachirisu and Buneary. Brock is helping out at the Pokémon Center by taking care of the sick and injured Pokémon.

Meanwhile, Team Rocket is spying on the group from a nearby tree and come up with a plan to steal Pikachu. They create a fake Pokémon Center and lure Pikachu and the other Pokémon inside, where they trap them in a cage.

Ash and his friends arrive at the fake Pokémon Center, but quickly realize that something is off. They soon discover Team Rocket's plan and engage in a battle to rescue Pikachu and the other trapped Pokémon.

During the battle, Ash's Turtwig evolves into Grotle, becoming stronger and more powerful. Grotle's new strength helped turn the battle in Ash and his friend's favor, ultimately leading to Team Rocket's defeat.

After the battle, Ash and his friends continue their journey towards the Sinnoh League, with their Pokémon more powerful than ever before. They realize that the battle was a great learning experience, and vow to continue training hard in order to become even stronger and take on the challenges ahead.