Template:Incomplete synopsis
At the Vertress Conference, Ash battles an unnamed male Trainer with his Scraggy. Scraggy defeats the opponent's Darumaka using Hi Jump Kick, leaving Ash to proceed to the last 16 Trainers. It then shows the battles of Ash's rivals. Stephan's Sawk defeats a Gurdurr and Stephan wins. Cameron wins with his Ferrothorn against an Amoonguss and Virgil wins with his Glaceon against a Reuniclus. Afterwards, the central screen shows the match-ups for the last 16. Much to Ash's shock, he finds out he has to battle Stephan.
After the second round, the Trainers begin to rest for tomorrow. As Cilan, Iris and Bianca walk through town, Bianca immediately realizes that there's an Ice Cream stand selling Casteliacones and goes ahead to buy some. Axew suddenly notices a balloon floating by and runs after it. Meanwhile, Ash and Stephan are arguing who will win their battle. Cameron becomes excited because there will be fireworks that night, and he and Riolu run off to set up a tent in the open air to enjoy the fireworks to the fullest. Stephan tells Ash that he will show him how strong he really is and walks off. Ash then meets up with Cilan and Iris and Pikachu notices Axew is gone.
At that same moment, Axew still chases the balloon but finds it has flown away. He then realizes he got lost and because there are so many people, he can't see where Iris and the others are. Axew then sees a bunch of people celebrating for Russet, a participant of the Vertress Conference, for making it to the first few rounds. As Russet's celebrating squad walks by, Axew follows and an old lady of the squad notices Axew and grabs him. Meanwhile, Ash, Iris and Cilan are still searching for Axew.
Axew becomes dizzy because the woman that has taken him away runs at a fast pace. At the Vertress Stadium Ash and his friends are searching Axew using the surveillance camera system. Suddenly, Iris sees a recording where Axew is taken by the arm by an old woman. In the city, Bianca is eating a Casteliacone. She notices Axew walking all alone with a costume on. Axew tries to reach Bianca, but is taken away by Russet and his supporters once again. Meanwhile, Cameron and Riolu are setting up their tent near a lake. Their camp is accidentally destroyed by Russet and his supporters, however. Ash, Iris, Cilan and Virgil meanwhile are still in search for Axew. They meet up with Bianca and she wants to give them Casteliacones, but accidentally knocks Ash away in the water. Bianca then tells that she has seen Axew. The group decides to use their Pokemon to search for Axew. Ash sends out Pikachu, Oshawott and Scraggy while Iris sends out Iris's. At that same moment, Axew and Russet and his family and friends are picnicking and the group celebrates the fact that Russet made it to the last 16. Axew notices a girl giving her Lillipup food, which reminds him of Iris.
Meanwhile, Pikachu, Scraggy, Oshawott and Emolga are still in search of Axew. Whilst Pikachu and Scraggy ask a Stoutland for help, Oshawott notices a bunch of apples given to some wild Trubbish by a shopkeeper. The group of Trubbish notices Oshawott coming and hide. Oshawott then proceeds to eat all of the apples. Emolga and a wild Swoobat manage to find where Axew went. As the Pokemon prepare to leave, the shopkeeper that gave the apples to Trubbish notices that Oshawott ate all the apples and a full Oshawott. Elsewhere, Axew runs away from the group of supporters to find Iris. At that moment, the Trubbish realize that Oshawott ate all of their apples and begin to cry, and a Garbodor appears, consoling them. It and the Trubbish then head on their way to search Oshawott. Meanwhile, Cameron and Riolu manage to repair their camping spot. Iris and the others come by and find the hat that Axew wore earlier and countinue to search, destroying Cameron's camp once again. Somewhere else, in a forest, Axew cries that he got lost. But Pikachu and the other Pokemon manage to find him and they reunite. The Garbodor and Trubbish arrive, however, having come to get revenge for Oshawott eating all the apples.