A Ripple in Time

During a Pokémon battle, Ash and Pikachu are suddenly swallowed by a brilliant light and cast into an unfamiliar place. With no clear path home, they search their strange surroundings for any sign that can explain how they arrived there.

Celebi soon becomes their best lead. Following the elusive Pokémon draws Ash and his friends deeper into a world where familiar Pokémon appear in unexpected forms and the boundary between the present and traces of another time begins to blur. To return, they must keep chasing the ripple that carried them away.