Pikachu and its Pokémon friends gather for a very special event: the Mythical Pokémon Meloetta is giving a once-a-year performance at Lunatone Rock! As the full moon rises, the Melody Tree sprouts up from the stage, growing the Melody Berries that enhance Meloetta’s song. But when a battle breaks out in the audience, the Melody Berries are scattered far and wide! Can Pikachu and the others track down these special Berries so Meloetta’s show can go on—and can they find them before Meowth does?
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The narrator starts explaining about the Pokémon forest. Pikachu and his friends looks at the sky. Suddenly, the moon begins to glow, and Meloetta appears. Meloetta lands on the ground, and plants the Melody Tree. Then, it sings the Relic Song which makes the tree grow and sprout Melody Berries. Meowth becomes excited and starts scratchingCrustle, which makes it use Sandstorm. The Sandstorm breaks the tree, and the Melody Berries blast off. Meloetta manages to catch one of the berries as the other four scatter. Pikachu and friends then start searching for the Melody Berries while Meowth searches for them as well, trying to impress Meloetta. Pikachu and friends eventually manage to gather all Melody Berries and give them to Meloetta, making Meloetta become happy and sing in the end.
The version of the episode used in Camp Pokémon cuts approximately a minute-and-a-half of footage: when Meowth attacks Crustle and it uses Sandstorm, when Meowth say he needs a nap and Wobbuffet agrees, when Axew fights with Scraggy, when Piplup, Oshawott, Squirtle battle with Corphish, when Psyduck uses Water Gun on Meowth and Wobbuffet, when Meowth complains while flying through the air, and when Meowth and Wobbuffet land on Crustle and they blast off. This is likely due to the fighting in the cut footage being considered inappropriate for the app's intended audience.