Ash and Brock help Dawn train for an upcoming contest. However, her planned appeal always makes Piplup dizzy and it always fails. While they prepare to eat lunch, Team Rocket finds a pile of berries belonging to a Golduck, Wooper, Quagsire, and Poliwag, and steal them. When some of these berries wind up with some Ludicolo, Golduck begins to yell at the Ludicolo. Team Rocket attacks Golduck and sends it flying so that Ludicolo will join there side. Soon, Piplup winds up leading the Golduck to fight the Ludicolo and Team Rocket in what will be a Water Pokémon showdown!