Back at Hearthome City, Ash is eager to challenge Fantina to a gym battle. However, before he gets a chance, he meets up with a trainer called Jun, from the same town as Dawn. Upon meeting, Ash learns that Jun is a trainer who follows Paul's training method; looking for strong Pokémon and getting rid of weaker ones. Ash is annoyed by this and intends to show Jun the proper way to train. The pair do battle...

Taking a blimp to Canalave City, Ash & Co., travelling with Jun, end up exiting the blimp and getting separated with their Pokémon. With the various groups all separated and with Pokémon they don't normally hang out with, the groups need to all come together so they can get to Canalave City. Will they find eachother or will they be stuck forever?