Pokémon: DP Galactic Battles Gateway to Ruin!

Ash and friends are on their way to Lilypad Town where Dawn’s next contest will be held. They arrive at Mount Coronet, the massive mountain that divides the Sinnoh region in half. The mountain also divides the region’s Pokemon, like Shellos. The Blue and Pink Shellos have ended up on the opposite sides of the mountain. Piplup falls into a tunnel, and when they go to rescue it, they come across something sinister from Team Galactic., The gang help a lost Shellos return to its herd. While traveling, they come across Team Galactic, who are plotting their next move.