The older boys are graduating school and recount their memories together. The next day everyone defends the graduation ceremony against Zundar and Dadacha's Second-Button Monster, but Yumoto struggles using his love power.
The story of "The Mastermind of Mirage Pokémon" centers on a Pokémon scientist who has developed a new Mirage System to resurrect extinct Pokémon. Satoshi, Haruka, Masato, and Takeshi show up at the Mirage Mansion for a demonstration of this new machine, only to witness the kidnapping of the scientist! Then a mysterious stranger appears and claims that the machine can actually create Pokémon without weaknesses. It’s up to Satoshi and company to preserve the natural balance of the Pokémon world.
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.
When Molly Hale's sadness of her father's disappearance gets to her, she unknowingly uses the Unown to create her own dream world along with Entei, who she believes to be her father. When Entei kidnaps Ash's mother, Ash along with Misty & Brock invade the mansion looking for his mom and trying to stop the mysteries of Molly's Dream World and Entei!
When Lawrence III's scheme to capture the Legendary Pokémon Lugia upsets the balance of nature, it is up to Ash Ketchum and his friends to save the world.
