Pokemon Movie 12: Arceus Choukoku no Jikuu e

Long ago, the legendary Pokémon Arceus saved the world from a devastating meteor but was left gravely weakened after losing its life-giving Plates. A man named Damos helped restore its strength, and in gratitude Arceus lent humanity the Jewel of Life on the promise that it would one day be returned. Instead, betrayal left Arceus furious with humankind.

In the present, Ash and his friends arrive in Michina and meet Damos' descendant Sheena just as Arceus awakens to reclaim what it believes was stolen. With even Dialga, Palkia, and Giratina unable to contain its anger, the group is drawn into the past to uncover what truly happened and prevent an ancient deception from destroying the future.