Ash, Iris, Cilan, Trip, Bianca, Burgundy, Georgia, Stephan , and Luke participate in the Don Battle Tournament. Ash wins against Burgundy's Stoutland with his Palpitoad, Stephan's Blitzle evolved into Zebstrika and Burgundy obtained a Stoutland prior to this episode.
Ash and co. arrive in Nimbasa Town (Which is south of Nimbasa City). Once again he runs into Bianca (Or rather she bumps into him and knocks him into the fountain). She is introduced to Luke and his female character impersonating Zorua. She states she's entering the Don George battle tournament. Seeking a good workout for his Pokémon, Ash signs up along with Iris and Cilan. They aren't the only ones participating as they encounter Cilan's rival Burgundy, Ash's friend Stephan, Iris' rival Georgia (Who dosen't take Luke's Zorua's impersonating her as well including her personality) and Ash's rival Trip. The tournament has begun, with the prize being the complete set of wings. And so far Georgia, Antonio, and Dean advance to the next round with Ash going up against Burgundy. Can Ash win against her, especially with his new Palpitoad going up against her Stoutland? Yes and he made it pass the 1st round and advancing to the 2nd round.
All the known rivals Ash and co. met so far appear in this episode.
The tournament match-ups are as follows:
Georgia vs. Sylvester
Antonio vs. Emmanuel
Ash vs. Burgundy
Cilan vs. Trip
Stephan vs. Bianca
Luke vs. Scooter
Omega vs. Dino
Iris vs. Jimmy Ray
So far the only participants in the next round are Georgia, Dino, Antonio and Ash.
This is the third tournament Ash has participated in.
This episode marks Ash's Palpitoad first appearance since it's capture.