While enjoying their time at the beach, Pikachu and the other Pokémon stumbled upon a Wynaut who was in distress and needed help. It revealed that its companions had been attacked by members of Team Rocket, including Meowth, Exploud, and Hariyama. These villainous Pokémon had invaded a nearby island and were trying to take over. After hearing Wynaut's story, Pikachu and the rest of the group decided to lend their support and fight back against the invaders. They began to train and strategize in order to take back their territory from Meowth's clutches.