After Pancham and Chespin get into a fight, Ash, Serena, Clemont, and Bonnie meet Nini, a Pokémon Performer preparing for the Pokémon Showcase. Serena becomes inspired to add performances to her battle style as well, and has to use it quickly when Team Rocket kidnaps Chespin, Fennekin, Pancham and Nini's Pokémon. (Source: Wikipedia)
