Their last stop before Mossdeep City lands Ash and friends on an island whose inhabitants devote day after day to building up their physical strength in order to improve their Pokémon battle performance. Our young trainers are hard-pressed to keep up with their new muscle-bound friends in a grueling workout, but eventually Ash faces the island’s champion in actual Pokémon battle, in hopes of proving that victory does not always favor the trainer with the bigger biceps.