Pokemon Season 9 - Episode 450 – Battling the Enemy Within

Ash and friends finally arrive at the Battle Pyramid. As they get close, they fall into some ancient ruins. After almost being crushed, they run into a guy named Brandon who owns a Regirock! Brandon acts as if they are in the wrong for being there and decides to take them out. Brandon tells them that these are the ruins of the Ancient Empire Pokélantis, and the legend of its King and the legendary Ho-Oh. When they find the throne room, Ash touches a sphere and he is possessed by the evil King himself. He then tries to steal everyone's pokémon! Brandon decides to stop him in a battle and save Ash. Will Brandon be able to win and set Ash free? Or will the King win and steal all the Pokémon?