On their way to the Battle Palace, Ash and friends stop at Potpourri Island where they learn about the Pokémon Orienteering Contest. The contest is a race around the island where a trainer and one Pokémon must go to five different locations and get the special stamps at those locations. The winner will receive a special medal along with a ton of fruit. As the contest begins, Ash goes with Pikachu, May goes with her new Eevee, Brock goes with Bonsly, Max goes with Munchlax (lent to him by May), James with Mime Jr, and Jessie with Meowth. Who will win the contest and win all that fruit? That is if Jessie and Meowth don't succeed in stealing it along with Ash, May and Brock's Pokémon!