Lady faces a new Pok?mon battle challenge when she must swap her Pok?mon with her opponent and fight with rented Pok?mon. Meanwhile, the Battle Frontier begins to suffer from a mysterious communications malfunction... What does it signify? Then, Dia and Pearl set out to visit several Legendary Pok?mon of the Sinnoh region. Will they be able to protect them from Team Galactic? Plus, say hello to Togekiss, Empoleon, Heatran, Kakuna, Seedot, Ledian and Rotom!