While on their way to a Pokemon Contes, Ash and his friends pass through Alamos Town, home of the Time-Space Tower. Along with the beautiful Alice, our adventurers discover that something is inflicting terrible nightmares on Pokemon and people alike! Baron Alberto, a dashing but arrogant fellow, immediately blames this turn of events on Darkrai. Who is Darkrai? Is it a fiend or a friend? Meanwhile, a battle between Legendary Pokemon Dialga and Palkia rages directly above the town, threatening to tear all hole in the time-space continuum! Will Ash and his friends survive this showdown and learn Darkrai's true nature?