Lady faces a new Pokémon battle challenge when she must swap her Pokémon with her opponent and fight with rented Pokémon. 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 Pokémon 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!