Piplup is getting sick and tired of being constantly hit by Gible's failed Draco Meteor attacks. Fed up, Piplup runs away, and heads towards Professor Rowan's lab. Will Dawn be able to find her beloved Pokémon?

Ash is finally going to battle Volkner, the Gym Leader of Sunyshore City so he can get his eighth badge and qualify for the Sinnoh League. However, a mysterious power outage occurs, canceling the battle. Everyone heads to Sunyshore Tower, the source of the city's power, but it has disappeared! Now they must somehow trace it and bring it back.