While our heroes are exploring Reflection Cave, named for its mirror-like surfaces, Ash's own reflection pulls Pikachu through one of the mirrors! Ash leaps after it and finds himself in another world, with a Clemont, Bonnie, and Serena very different from the ones he knows. After our Ash helps reunite Mirror Ash with his own Pikachu, he has to get out of the mirror world right away or risk being stuck there forever! His friends are waiting beside the mirror he first stepped through, and all of them focus on reuniting with each other. Thanks to the strong bonds of friendship, Ash and Pikachu are pulled back to their own world just in time!