Finally arriving in Undella Town to start training for the World Tournament, Ash & co. meet up with a very old friend, Dawn, who has arrived to train to become a better co-ordinator. Cilan is eager to see how a Pokémon Co-ordinator battles and so challenges Dawn to a battle. In addition to that, Meloetta has decided to tag along with Ash & Co, but Team Rocket still have their eye on it...

While training for the World Tournament in Undella Town, Ash & co. bump into a trainer who is looking for his Cubchoo which disappeared from a locked room in the house. While investigating, Cilan comes to the conclusion that Cubchoo has been kidnapped. However, as they go further into the forest, they soon find a Beartic and assume that Cubchoo has evolved. Has Cubchoo evolved and was it really kidnapped?