Pokémon Hunter J arrives in Snowpoint City and targets the legendary Pokémon Regigigas, which is sleeping inside the Snowpoint Temple. After J commands her henchmen to launch an attack, a maiden from the shrine asks Ash and his friends for help. But Ash and the others come too late; Regigigas has been reawakened and starts rampaging.

Ash and friends arrive at Lake Acuity, the site where Ash and Paul will have their full 6-vs-6 battle. After healing his Pokémon, Ash meets up with Paul and the two begin their long awaited battle. Who will ultimately be victorious?