When a new Pokèmon emerges able to create parallel dimensions, it's up to Ash Ketchum and his friends to stop a mysterious stranger from using its powers for evil!

Finally in Celestic Town, Dawn & co. arrive just in time for the Pokémon Contest. When they go to enter, Dawn finds out that a rival of her mother's is entering in the contest. With a seasoned co-ordinator as one of her opponents, Dawn could be facing the hardest contest of her career so far. Will she win?