Pearl, Diamond and Lady Berlitz finally reach the base of Mt. Coronet. They're all set to scale its cloudy peak...but first, there are dancing contests to win, badges to compete for and enemies to evade! Speaking of enemies, are those shadowy figures members of...Team Galactic?! Plus, meet Roserade, Stunky, Probopass, Buneary, Pachirisu, Croagunk, and many more Sinnoh Pokemon friends!

Team Galactic commanders Jupiter, Mars and Saturn are determined to bomb Lake Verity, Lake Valor and Lake Acuity to awaken the Legendary Lake Pokmon that dwell in their depths! Diamond, Pearl and Platinum divide forces to stop them, but can they conquer?

"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? The, 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...