While on the way to Striaton City, Ash and Iris arrive in Accumula Town and Ash hears about a place called the Pokémon Battle Club. Interested, he decides to go check it out and meets its owner, Don George. Ash is excited to battle in the facility and begins a match with another trainer. Meanwhile, Team Rocket break into the warehouse of the Battle Club and set off the alarm and also disturb a mysterious Pokémon. Upon seeing the security tape, Don George and everyone begin to search for the mysterious Pokémon.