Having won his eighth badge, Ash is ready for the Unova League. However, Nurse Joy informs him it won't take place for another three months. While walking around Virbank City, Ash and friends run into Cynthia, the champion of the Sinnoh region! She tells them she is getting ready to leave for Undella Town before heading onto the Pokémon World Championship Junior Cup where she is going to be taking part in a exhibition match. Everyone decides to enter and join her on her trip. However, on their way to the airport they discover the Legendary Pokémon Meloetta who has been injured from an encounter with Team Rocket and must nurse it back to health.