Ash may think he's seen everything when it comes to Pokémon, but is he ready to face the mysterious Darkrai?

Who is Darkrai? Is it a friend... or foe? As the sky tears above Alamos Town and Legendary Pokémon Dialga and Palkia struggle through the rips in a newly created dimension, their battle threatens to tear a hole in the time-space continuum! Will Ash and his friends survive this showdown and learn Darkrai's true nature?