The time for Ash’s Gym battle with Burgh, the Castelia City Gym Leader and Bug-type Pokémon expert, has finally arrived! Burgh’s first Pokémon is Dwebble, and Ash sends out his Tepig. From the outset, Burgh’s Dwebble shows impressive speed thanks to an extra-light rock on its back, and its powerful Rock Wrecker attack quickly knocks Tepig out!

Next, Ash brings out his Sewaddle. Burgh is pleased to see his old friend from Pinwheel Forest—until Sewaddle makes quick work of Dwebble by knocking the rock off of its back with a well-placed Razor Leaf, evening the score!

When Burgh brings out his tough Whirlipede, Ash decides to stick with Sewaddle—who evolves into Swadloon in the midst of the battle! Swadloon’s powerful Energy Ball defeats Whirlipede, leaving Burgh with only his beloved Leavanny. The Nurturing Pokémon quickly overpowers Swadloon, leaving Leavanny to battle against Ash’s Pikachu!

Pikachu soon finds itself trapped by Leavanny’s String Shot. With its tail all wrapped up, Pikachu is way off balance and having trouble aiming! After several attempts to shake off the sticky string fail, Ash sends Pikachu diving straight into Leavanny’s Leaf Storm. It’s a risky move, but the sharp leaves cut right through the strings, and Pikachu is free! Back up to speed, Pikachu defeats Leavanny with a powerful Electro Ball, and Ash excitedly claims the Insect Badge!

Meanwhile, the Team Rocket trio have been getting the silent treatment from their Boss, Giovanni. His secretary advises them to act on their own and do their best for Team Rocket. Jessie, James, and Meowth decide to go back to doing what they do best—annoying Ash while trying to steal Pikachu! And when James befriends a hungry Yamask that wanders into their cave, Jessie proclaims this an excellent omen for their future...