Team Flare appears to be defeated for now—Clemont has destroyed their control system at great personal cost, and Alain and Ash have battled Lysandre to a standstill. But as the villain disappears, he promises that his new world will come to pass... Meanwhile, Mairin and Serena rescue Chespie—only to watch in horror as it’s absorbed by the mysterious Giant Rock, which changes shape to resemble Zygarde! It begins to move, heading toward the Anistar Sundial in search of more energy. Everyone is determined to stop it at all costs—including the Gym Leaders and Champion Diantha, as they join our heroes to rescue Chespie and save the world! (thetvdb.com)