They proceed through the Darumaka cave first and hit a dead end and fire is erected behind them. They appear to be hijacking food from different sectors of Unova and storing it into their warehouse. The three gather where they together regrow the revival herbs. Meanwhile, Team Rocket pulls out the Thunder Wedge and destroys it. Iris is trying to get Deino to come out, but still has no luck. Ash has won the Quake Badge making it badge 5 of 8. Suddenly, their computers crash and freeze up along with the link trade system as well.
Cilan reveals they went to see Ingo and Emmet to find Ash and Iris, and just as Cilan prepares to hand in his card for his Battle Subway challenge, he realizes he is missing one stamp. Iris watches Deino depart and they help out once more by feeding the Pokémon. They head off to the Black Hero's Ruins and once there head inside. Up next is and engagement of Rock Smashes but Boldore overpowers Excadrill and takes it out. However, they instead find a roaming Beartic that might have once been Chris's Cubchoo. When the group stops in Stonesthrow Town, Cilan meets little Marigold who is picking out her first Pokémon today.
Iris notices something coming and they encounter Team Rocket. However, they soon discover the island is home to several Onix that begin to attack them. As the second round gets underway, the remaining contestants battle for the chance to enter the Top 4 in the Clubsplosion semi-finals. Tussy finally overcomes its fear of heights and manages to pull off the move. Team Rocket releases the cargo and make an emergency retreat from the island. Along with their new friend and the rest of the students at the Pokémon School, Ash and Pikachu explore the Aether Foundation, an organization dedicated to Pokémon conservation and care.
Meanwhile, Axew has a bad dream a wakes up to find both Gothita and Scraggy missing. The three legendary Pokémon depart Milos Island as well as the gang where they return to Driftveil City to give Clay his revival herbs. They go to the Driftveil Market together where the gang receive merchandise for being with Charles. Intrigued by this, everyone sets out for the island. Ash, Iris, and Cilan, after finding out that the winner gets to ring the bell atop Mistralton Tower and get a wish granted, decide to compete in the festival. The Sawsbuck then calls the others to come, revealing four Sawsbuck, all of different seasonal forms.
They go to a doughnut shop where they find Chili eating his stress away. They return to the fight scene and discovering that they are fighting in the clouds. They travel to the Ferroseed Institute to see the Moss Pokémon Ferroseed being studied, but when an accident forces an evacuation, Iris, her Axew, Ash's Oshawott, and Georgia's Vanilluxe are trapped inside. Cilan offers his skills as a Pokémon Connoisseur, but another A-Class Connoisseur named Ricard Nouveau offers up his services instead of Cilan's, and they have a battle to determine who is the better Connoisseur. Iris is up first against Georgia, with Iris's newly captured Dragonite being pitted up against Georgia's Beartic. Angry, Ash challenges Shamus to a double battle with Snivy and Tepig going up against Shamus's Emboar and Heatmor. Meanwhile, the gang look for Pikachu but run into Krokorok who is also looking for Pikachu.
Suddenly, Sigliyph and Cofagrigous appears to send them flying into the sky and free-falling back down. Snivy and Emolga both use Attract on each other, but it does not work as they are both female, a fact Ash has forgotten about his own Snivy. Zebstrika uses Flame Charge followed by Double Kick which takes out Shelmet. They go to see the sports arenas, having a tennis match, and then head off to see a Pokémon Musical, before spending time at the amusement park. Deerling stops and Robert takes pictures until they spot the Foongus.
Thundurus and Tornadus try to attack before Landorus receives the herb but fail. Accelgor protects it but takes a lot of damage. The professor deciphers the ancient writing and states that turning the statue to the left, Cilan in the meantime turns it to the left, is a bad idea. But before Ash can challenge movie star Brycen and his Beartic for his next Gym Badge, they must help Brycen save Volcarona from the Pokémon Hunter Rizzo and his two Jellicent. Lewis quickly runs to his cabin to get the final herb and to give it to Landorus. With Oshawott frantically trying to find its Scalchop, Palpitoad uses Rock Smash and takes out Oshawott.
Iris calls out Excadrill to use Metal Swipe. She jumps over to them and they introduce themselves to Elesa. However, Bianca's father shows up, having come to end Bianca's journey and take her home but, she refuses to go. Krokorok uses Stone Edge next. At first it struggles against the much faster Swanna—but in the heat of battle, it evolves into Unfezant! Gothita gets agitated with Snivy and wants to battle it first thing tomorrow.