XY037

The Cave of Mirrors! (Japanese: うつしみの洞窟！鏡の国のサトシとサトシ！？ Reflection Cave! Mirror World and Satoshi!?) is the 37th episode of Pokémon the Series: XY, and the 836th episode of the Pokémon animated series. It first aired in Japan on July 31, 2014 and in the United States on September 27, 2014.
==Blurb==
While our heroes are exploring Reflection Cave, named for its mirrorlike crystal walls, 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 Mirror Ash drive off Team Rocket and reclaim his own Pikachu, Mirror Clemont tells him of a frightening legend—people who pass through one of the mirrors in Reflection Cave must return to their own world before sunset or risk being stuck on the wrong side of the mirror forever! Ash hurries back to the mirror he first stepped through, where his friends are waiting on the other side, 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!
==Plot==
As and make their way to Shalour City, and rush off to a cave, but when asks what is so special about the cave, Serena says that they will have to wait until they get inside to find out. Once everyone is inside the cave, they all admire the particularly reflective cave walls, and Serena tells them that the cave is called Reflection Cave. Ash rushes ahead to discover more of the cave to explore. Not wanting to get left behind, the others run after Ash. While Ash wanders around the cave, he sees a bright light coming from behind him from one of the rocks, but just as he approaches the rock, the light disappears and he stares at it in confusion. Ash then approaches another mirror-like rock, which starts to shine like the one from earlier, but this time Ash sees his reflection reach out and grab , causing him to shout out, alerting his friends as they rush to his location, but they only see him as he disappears through the opening in the mirror before it closes.
Following a bright flash of light, Ash exits the cave to find himself in a forest that looks much different than ones he has seen before. Running down the path looking for Pikachu, Ash is stopped by Serena, who is different than the Serena he knows. Bonnie also appears, informing Clemont, who races past them, then stops before running back. As Ash explains what has happened to Pikachu, Serena does not believe him when he tells them that another him grabbed Pikachu, and she and Bonnie mock him. The three are not convinced by Ash's story, but Serena does admit there is something different about him compared to the Ash she knows, and Mirror Clemont tells them of a legend about Reflection Cave. As Ash tells the three of them that they are different to his friends back in the world he came from, Serena gets annoyed and challenges him to a battle, telling Ash she will believe him if he manages to beat her, to which he accepts. Mirror Serena sends out as Ash chooses his . Fennekin starts off with , which is countered by Froakie's . Serena then tells Fennekin to use , but Froakie uses to avoid it, making Mirror Serena panic, as the battle finishes with Fennekin being knocked out by . Since Ash won the battle, Serena has no choice but to believe he is telling the truth. Mirror Ash then reveals himself with Ash's Pikachu. Mirror Clemont asks what happened for Mirror Ash to get in this situation, to which he explains that after losing to Serena, he ran into Reflection Cave, but shortly lost sight of Pikachu, so when he saw Ash's Pikachu, he grabbed him thinking he was his. Ash then asks what Mirror Ash's Pikachu is like, to which he explains he is wild and aggressive as the scene cuts to trying to capture Mirror Ash's Pikachu. Pikachu uses to send flying into James as Jessie catches the device and captures Pikachu in it.
Ash tells Mirror Ash that he cannot leave him knowing he is in trouble and offers to help him find his Pikachu while Mirror Serena wonders how they are going to find Pikachu, to which Mirror Clemont laughs to himself. Back with Clemont, Bonnie, and Serena of the main world, they wonder how they are going to get Ash back, with Clemont revealing his new invention called the "Other Dimension Converter", though it does not work and ends up blowing up. Back in the Mirror World, Mirror Clemont reveals he has a magic spell prepared for the situation and draws a lightning bolt shape on the ground as he proceeds to put his staff in the middle and says that whichever direction it falls in will be the direction they need to search for Pikachu in. As Mirror Bonnie compliments her brother, the real world's Bonnie shouts at Clemont for his failed invention as a clearly upset Serena wonders if Ash has disappeared forever.
Back with Team Rocket, Mirror Ash's Pikachu continuously uses on his cage as he tries to break free, just as James notices there are people approaching the area. Ash reveals that they have reached a dead end, to which Mirror Serena wonders where Pikachu could be as Team Rocket observe them and Pikachu as they plan to capture him as well. Mirror Ash then starts to get upset at the thought of never seeing Pikachu again, but Ash offers him some comfort. Just then, Ash's Pikachu is captured as everyone looks in shock. Ash recognizes the group as Team Rocket, but the others do not know who they are, claiming that they are known as "The Heroes of Justice", which confuses Ash, as Mirror Ash notices that Team Rocket also have his Pikachu. Ash orders Team Rocket to let the Pikachu go, but instead, they send out and . Ash then tells Mirror Ash that they should battle too, to which both send out their . The two Ash order their Hawlucha to use on Pumpkaboo and Inkay, but as Ash's Hawlucha charges in forcefully and hits Inkay, Mirror Ash's Hawlucha jogs slowly and worriedly, missing Pumpkaboo as it is tackled by it. James orders Inkay to fire at Hawlucha, but Ash's Hawlucha steps in and takes the hit, only to become confused in the process and forcing Ash to recall it. Pumpkaboo hits Mirror Ash's Hawlucha into Mirror Ash before being returned too. Mirror Ash then starts to cry, but Ash tells him nothing will be solved by him crying and that they have not lost yet. As Mirror Clemont picks up the two cages containing the Pikachu, he is spotted by Meowth. Panicking, Clemont stands on Meowth and dodges Jessie and James's attempts to stop him as he throws the cages into the air, at which Serena has her Fennekin use on them, freeing the two Pikachu before they land in front of their Trainers. Ash and Mirror Ash promptly order their Pikachu to blast Team Rocket off with Thunderbolt.
After Ash is praised by the Mirror World group, Mirror Serena tells them it will be dark soon, which makes Mirror Clemont remember about the legend of Reflection Cave and that anyone stuck in the Mirror World after sunset will be stuck there forever. As Ash and the Mirror World group return to Reflection Cave, Mirror Ash explains how he opened up the portal to the other world. Ash then starts wishing hard to travel with his friends again, with Clemont, Bonnie, and Serena doing the same until a portal opens up on both sides, allowing the groups to see one another between the two worlds. As they wish for Ash's return, the portals move closer. Ash, with Pikachu in hand, steps in, only for the portals to begin moving away from each other again. As Ash starts to fall, Serena grabs his hand and his friends all pull him up. Everyone says goodbye to their doppelgangers as they promise to meet again, and once the two portals close, Ash states that the group from the Mirror World are going to continue their journey together and that they should do the same.
As they exit Reflection Cave, it is starting to get dark in this world too. Serena asks Ash if they will always be together on their journey, too, and Ash tells her that he would not want it to be any other way, to which Bonnie and Clemont chime in that they will always be a team. The group makes a stopover at a local Pokémon Center on the road to Shalour City. Meanwhile, Team Rocket find themselves marooned in the Mirror World following their earlier blast off. They look up at a rock and see Mirror Team Rocket, who are the real Heroes of Justice, leaving the real Team Rocket shocked at what they had just seen.
==Major events==
===Debuts===
====Pokémon debuts====
==Characters==
===Humans===
* 
* 
* 
* 
* Jessie
* James
* Mirror Ash
* Mirror Serena
* Mirror Clemont
* Mirror Bonnie
* Mirror Jessie
* Mirror James
===Pokémon===
Who's That Pokémon?: (US and international) Pokémon Quiz: 
(Japan)
* ()
* ()
* ()
* ()
* ()
* ()
* (; )
* ()
* (Mirror Ash's)
* (Mirror Team Rocket's)
* (Mirror Jessie's)
* (Mirror Clemont's)
* (Mirror Ash's; flashback)
* (Mirror Ash's)
* (Mirror Serena's)
* (×2)
==Trivia== 
* Professor Oak's Pokémon Holo Caster: 
** For the TV Tokyo airing, instead of the Professor Oak's Pokémon Holo Caster segment, a quiz of the released Diancie and the Cocoon of Destruction was shown with the exclusive Nintendo 3DS viewers can win.
* The regular opening sequence is replaced with clips from Pokémon the Movie: Diancie and the Cocoon of Destruction. Although this is a standard practice with some Japanese shows when a tie-in movie is released, this marks the first time it has occurred in the Pokémon animated series. 
* , , , and narrate the preview for the next episode.
** This preview is a parody of s. Unlike most previews narrated by several characters, Clemont is the only one actually reciting a synopsis, while Ash, Bonnie and Serena provide reactions according to his narration. Also, just like in Seeking Shelter From the Storm!, no background music plays during the preview.
* It is never revealed how Team Rocket ended up in the Mirror World, or how they later escaped as Mirror Clemont stated that people from another world cannot return to their own world after sunset.
** However, Mirror Clemont notably claims it to be "according to the legend", which may lack truth within.
* The symbol Mirror Clemont drew to find both Pikachu resembles the Screw Attack symbol from .
* Ash's Hawlucha's was animated differently in this episode, making it look more similar to , and resumed its usual appearance in subsequent episodes. The reason for this is unknown.
* The Mirror Serena's in the Mirror World knows the move , a move that the real Serena's had never used until the next episode.
===Errors===
* After captures Mirror Ash's Pikachu, can be heard before the sound of his Poké Ball opening.
* When Ash jumps into his dimension, Mirror Ash's Pikachu disappears, but when regular Ash gets to his dimension, Mirror Pikachu reappears on Mirror Ash's shoulder.
** Also, at the same time his Pikachu disappears, Mirror Serena is to the right of Mirror Ash, but a few seconds later, Serena is to the left of him.
* In one shot, the front of Ash's hat is colored white instead of red.
XY037 Error a.png|Mirror Pikachu, missing
XY037 Error b.png|Mirror Pikachu, reappearing
===Dub edits===
==In other languages==
037
Category:Episodes written by Shōji Yonemura
Category:Episodes storyboarded by Masakatsu Iijima
Category:Episodes directed by Fumio Maezono
Category:Episodes animated by Izumi Shimura
Category:Episodes focusing on Ash
de:Die Höhle der Spiegel!
es:EP841
fr:XY037
it:XY037
ja:XY編第36話
zh:宝可梦 XY 第36集