On Tamagotchi planet, Mametchi has just finished his new creation. But on its first trial run, the mischievous Kuchipatchi manages to throw the machine's aim off course, which results in a child from Earth, Tampopo, being transported to the Tamagotchi Planet.

On their way through the Battle Frontier, Ash and friends meet up with a Pokémon Ranger who's mission is to deliever the egg of Manaphy to a temple on the ocean's floor. However, a greedy pirate wants the power of Manaphy to himself.

In the legendary past, before Poké Balls were invented, an aura-guiding hero Pokémon named Lucario sensed two groups of armies about to clash, and a threat of a massive war in front of Oldoran Castle in Kanto that would leave no survivors. He transferred this message to his master, the legendary hero Arlon, while he was being attacked by a violent group of Hellgar. During the battle, his sense of sight was lost and he was rendered unable to see. He used the detection of his Aura, and so with the offensive Wave Bomb, he eliminated them. Though by the threat, the queen of Rota, Lady Rin was resolute to die with her civilians, and so Arlon made a choice.

Meowth is in charge of the Team Rocket secret base, a mysterious place full of odd gadgets and gizmos. Desperate to impress the boss, Meowth wants to use the Dancing PokéBaton—a device that lets users control Pokémon as they please—to create a show that’s sure to wow. Meanwhile, Pikachu and its friends finish up playing in the forest and stumble on the base. The gang hears Whismur, the Whisper Pokémon, crying for help—but when they try to make their rescue, the Dancing PokéBaton goes off and sends the whole group into a dancing frenzy! When a noise-loving Loudred and Ludicolo get caught up in the dancing, the madness gets even wilder! What’s going to happen to Meowth’s precious secret base?

Tokyo is abuzz with persocoms – humanoid computers that are virtually perfect. The socially and technologically inept Hideki is dying to get his hands on one. When he finds Chii abandoned in the trash, she’s cuter than any current model he’s ever seen before. But when he gets her home and turns her on, she has no data and only a single learning program installed. While Hideki puts his whole heart into teaching Chii the ins and outs of humanity, a mystery unfolds as a dark secret within her awakens.