Excitable Casey and easygoing Henry share a dream of participating in gym battles. For Casey it’s a chance to become reunited with her missing Pokémon. For Henry, it’s a chance to search for the legendary Rusted Sword and Rusted Shield. Casey, a hacker who invented the Dynamax Simulator, and Henry, a boy who repairs gear for Pokémon, both dream of entering the Galar region’s gym battles. But they can't enter any tournaments without the support of the local champion, Leon! Maybe helping Leon herd a flock of wandering Wooloo off the train tracks will earn them a recommendation?