Historia
Dr. Yung, an enigmatic Pokémon scientist, has developed a new Mirage system that uses computer data to resurrect extinct Pokémon, like Kabutops and Armaldo. Professor Oak, Ash and his companions show up at the Mirage Mansion at Dr. Yung's invitation, and watch a demonstration of the machine's capabilities. In the middle of a battle between Dr. Yung's Mirage Pokémon and Ash, the machine goes haywire and a Mirage Aerodactyl swoops in and kidnaps Dr. Yung.
Sinopsis vía AniList (en inglés).