Our heroes meet up with Shauna, their friend from summer camp, who takes them to see their first Pokémon Showcase! Aria, the Kalos Queen, starts things off with a fantastic exhibition performance with her Braixen. But just as the competition is getting under way, a wild Pancham runs onto the stage and cuts things short with its antics. Ash is disappointed, but Shauna and Serena are delighted that they got to see Aria perform—and Shauna is already making plans to enter the next Pokémon Showcase!
Later, the same Pancham steals Ash's hat and Clemont's glasses and runs away. Serena finds Pancham practicing near its cave, which is full of stolen items, and realizes it's using them as props because, like her, it loves to perform! When she tries to catch it, Team Rocket interrupts the battle. Annoyed, Pancham demonstrates its strength by battling the villains, and then joins Serena on her journey to become a Pokémon performer!
While the group take a break in a local park, Serena takes the opportunity to brush Fennekin. She also allows Bonnie a turn, making Fennekin's fur sparkly. Clemont's Chespin comes out and goes to Bonnie, who gives him a comb as well. Suddenly, Shauna and Bulbasaur arrive, greeting the group. Shauna reports that Aria will make an exhibition appearance at Lagoon Town's Pokémon Showcase today. Serena is excited to finally see Aria, the Kalos Queen and Pokévisionist, in person.
In the theater, the group watch the Showcase. Team Rocket are also in the audience, and James explains to Meowth that Performers show off their Pokémon in various ways, though Jessie is not pleased with the idea. The host, Monsieur Pierre, appears and introduces Aria. Aria's Braixen appears, who shows off its gracefulness. Braixen uses Fire Spin, presenting Aria. Braixen throws the branch to Aria, who throws it back to Braixen, landing it on Braixen's head. Using Fire Blast, Aria and Braixen end the show. Everyone is impressed, though Jessie thinks she can do much better. The next Performers are Kayleigh from Brindille Town and her Furfrou, and the latter jumps through the ring Kayleigh holds up. Shauna tells Serena that if someone wins the Theme Performance, they can proceed to the Freestyle Performance. Using Double Team, Furfrou jumps with the illusions through the ring, then spins. Unexpectedly, a Pancham appears on stage, crashing Kayleigh's performance with a spin.
Pancham jumps on a reflector, but it breaks from the added weight, causing Pancham to fall. As two stagehands rush to stop the menace, Pancham pushes a loaded cart against the stage crew and then escapes. Later, the Shauna and the others reflect on Aria's dazzling performance. Shauna admits she is going to enter the Showcases, too, though she needs to train first. Shauna leaves, and the group notice Chespin trying to imitate Braixen's moves, but failing. Suddenly, the Pancham from before throws a stick at Chespin and taunts him. Chespin tracks it down, and the group try to follow it. With a fork in the road, Ash and Serena split, while Bonnie and Clemont go another way. Ash is the first to find Pancham, who takes his hat and runs off. It then encounters Clemont and steals his glasses. Clemont tries to run after it and bumps into something. Clemont apologizes, but Bonnie points out it is just a rock. Serena and Fennekin find Pancham practicing its own performance routine, and are both impressed. Serena rushes forward, but this startles Pancham and sends it fleeing. Pancham leaps away, into its cave, where it has gathered a lot of objects for its performances. Serena offers Pancham her favorite sunglasses in exchange for Ash's hat and Clemont's glasses, but Pancham still runs off. Meanwhile, Clemont and Bonnie encounter Chespin. Clemont wonders where Pancham is, as he cannot see without his glasses. Ash arrives and notices that Clemont's glasses have been taken. Clemont is terrified that he might talk to rocks and trees again. The three later find Pancham, who is sleeping. Chespin wakes Pancham up, while Ash and Clemont demand their stuff back.
Serena intervenes, expressing her wish to catch Pancham. She gives Clemont his glasses and Ash his hat back. Serena reveals that she has decided to become a Pokémon Performer, and hopes to participate in the Showcases, which is why she wants to catch Pancham. Fennekin and Pancham are ready to battle. Fennekin goes to Scratch Pancham, but gets captured by Team Rocket. The trio overheard that Serena wants to participate in Showcases, but Jessie tells her that one needs to be beautiful to participate, unlike Queen Aria. They fly off, but Ash sends out his Fletchinder, who uses Razor Wind, cutting the balloon. The group rushes to the crash site, where Pancham uses Stone Edge, hitting Team Rocket. Meowth translates Pancham's words and says that Pancham does not want anyone to interfere with its battle against Fennekin. Jessie and James are infuriated, so they send out Pumpkaboo and Inkay to attack. Inkay uses Psybeam, but misses. Pumpkaboo unleashes a Shadow Ball, but it gets countered by Pancham's Dark Pulse. Pancham uses another Dark Pulse on Inkay, while Chespin uses Pin Missile on Pumpkaboo. Meanwhile, Pikachu, Dedenne, and Pancham try to free Fennekin from the capture net. Jessie stands with Pumpkaboo over them, and the latter uses Shadow Ball. Serena runs and tackles Pumpkaboo, preventing that move from hitting the others. Jessie is enraged, so Pumpkaboo goes to use Leech Seed. Pancham, Pikachu, and Dedenne free Fennekin, and Pancham uses Dark Pulse on Pumpkaboo. Chespin bashes Inkay, Pumpkaboo, and Meowth into Jessie and James, before Pikachu blasts Team Rocket off with a Thunderbolt.
Serena thanks Pancham for its help and asks it to battle Fennekin again, which it agrees to. Pancham starts with Dark Pulse, though Fennekin jumps, dodging it and using Flamethrower on Pancham. Pancham uses Arm Thrust, hitting Fennekin, who retaliates with another Flamethrower. Pancham avoids the attack and uses Arm Thrust once more, though Fennekin hits it with Hidden Power. Serena uses a Poké Ball to catch Pancham, but Pancham bursts out immediately. Ash urges Serena to keep battling, so Fennekin uses Flamethrower and Hidden Power on Pancham, weakening it. Ash then advises Serena to try to catch Pancham again. Serena begs Pancham to join her to perform on Showcases, throwing her Poké Ball again and, this time, successfully catching Pancham. Ash, Clemont, and Bonnie congratulate her, and Serena sends out her newly caught Pancham. She expresses her desire to become a better Performer than Aria, putting her red sunglasses on Pancham. Ash and Clemont also promise to fulfill their own dreams. Serena asks Pancham and Fennekin to do their best in becoming Performers.