Ash and Goh are guest performers at the Pokémon Circus! Chloe tags along, hoping to see a Jolteon and Flareon who are also set to perform. But it turns out the two Pokémon are still Eevee—and when their Trainers go to evolve them, their Evolution stones get switched! Now, Harmony the Fire-type Trainer has a Jolteon, and Billy the Electric-type Trainer has a Flareon. The performances they’ve planned are in shambles, but the newly evolved Pokémon are determined to set things right. With the help of Chloe’s Eevee and our heroes, they find a way to work together with their Trainers and put on a great show!