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XY136 : Forming a More Pefect Union!
XY series
XY138 : The First Day of the Rest of Your Life!
Battling with a Clean Slate!
XY137   EP936
Starting from Zero! Citron's Decision!!
First broadcast
Japan October 6, 2016
United States December 18, 2016*
December 24, 2016*
English themes
Opening Stand Tall
Japanese themes
Opening XY&Z
Ending キラキラ
Animation Team Kato
Screenplay 藤田伸三 Shinzō Fujita
Storyboard 尼野浩正 Hiromasa Amano
Assistant director 西田健一 Ken'ichi Nishida
Animation directors 上田美由紀 Miyuki Ueda
入江健司 Kenji Irie
No additional credits are available at this time.

Battling with a Clean Slate! (Japanese: はじまりはゼロ!シトロンの決断!! Starting from Zero! Citron's Decision!!) is the 137th episode of the XY series, and the 936th episode of the Pokémon anime. It first aired in Japan on October 6, 2016 and in the United States on December 24, 2016.

201 Spoiler warning: this article may contain major plot or ending details. 201


The Lumiose Gym has been through a lot, but everyone is working together to get it up and running again. Clembot is back, too, although Clemont hasn’t been able to restore its memories. When someone arrives to challenge the Gym, Clembot experiences its first Pokémon battle all over again—and it loves every minute! It asks Clemont to teach it all about Pokémon, and he’s pleased to start rebuilding their friendship.

The rest of our heroes are making plans, too. Ash wants to go home for a fresh start. Alain returns to work for Professor Sycamore. And Serena remembers Palermo’s offer to take her on as a student...


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Following the Team Flare incident, Lumiose City is getting back to normal whilst Ash, Serena and Bonnie work to rebuild the Lumiose Gym alongside Meyer. Meanwhile Clemont is busy working on Clembot and manages to get him working again. In a cafe, Team Rocket are speaking to Giovanni who has heard of Team Flare's downfall and Team Rocket take a lot of credit for bringing it and they promise to return to Headquarters once the airport reopens but decide to bring back a surprise and decide to capture Pikachu for the boss.

Clemont joins the others but is unable to get back all of the data for Clembot back when a challenger called Alvin arrives to challenge the gym. Alvin is excited on seeing Ash having watched the Lumiose Conference. Clemont introduces himself as the gym leader but Alvin wonders where Clembot is. Clemont explains what happened as Alvin explains he had previously challenged the gym but was defeated and has been training hard since them so he can battle Clembot again. Clemont explains that Clembot won't have any memory from before but Alvin still wants to battle. With the battlefield not ready, Clemont asks Alvin to come back the next day to battle which Alvin agrees. After Alvin leaves, Meyer informs them that Professor Sycamore has called saying that Alain is coming back.

At Professor Sycamore's lab, Mairin has fallen down on Chespie as Ash and his friends arrive. Mairin is surprised to see them and she explains that with Alain coming home, she thought she would throw a party. Clemont smells something burning. In the kitchen, Mairin moans about the burnt food as the others offer to help prepare for a party. Professor Sycamore drives Alain back but he appears more distant. As the others prepare for Alain's return, Bonnie can't help but wonder how Squishy is doing but Ash assures her Squishy is doing fine. Later, Alain and Professor Sycamore return as the food is already as Mairin welcomes him home.

During dinner, Chespin and Pancham get into another fight over food but Chespie manages to break it up as Mairin offers Alain some food. Professor Sycamore hears the Lumiose Gym is reopening and Bonnie says there is a challenger waiting. Professor Sycamore inquires to what they plan to do next with Ash saying he plans to return back to Kanto and start his journey again afresh only for Chespin to get their attention after eating too much. Later Alain visits Professor Sycamore's Pokémon who are all pleased to see him as Ash joins him saying it's been a while since he saw them as Garchomp comes over. Ash asks Alain what are his plans but he isn't sure. He is still down about helping Lysandre with his plans. Ash tries to help and asks him to battle again with him in the future which he promises only for a noise to alert them. Running to join the others, they discover that Team Rocket has captured Pikachu and say their motto. Ash goes to stop them with Greninja as Jessie and James send out Gourgeist and Inkay. The have a battle but Alain sends out Charizard to counter. Greninja uses Cut to free Pikachu before sending them blasting off along with Charizard. Ash thanks Alain for his help as Professor Sycamore prepares to repair the damage.

The next day Clembot is ready for his gym battle against Alvin which Meyer referees. The match is three on three with Clembot sending out Magnemite which Alvin sends out Vivillon. Clembot knows that a Flying-type like Vivillon is at a disadvantage against Magnemite and starts with Electro Ball but Vivillon counters with Flash to blind Magnemite and stop the attack before using Quiver Dance. As Clembot wonders what to do, Clemont tells him to remain calm and focused and observe and to predict his opponent's next move. As Clembot goes to do this, Alvin has Vivillon put Magnemite to sleep with Sleep Powder and use Energy Ball which knocks Magnemite out. Clembot recalls Magnemite as Clemont reminds Clembot to not get nervous and keep his eyes open at all times as Clembot sends out Magneton. Vivillon starts with Sleep Powder Magneton uses Rain Dance which prevents Sleep Powder from working and knocks out Vivillon with Thunder. Clemont praises Clembot on its strategy. Next Alvin uses Pyroar to attack with Flamethrower but another Thunder quickly knocks Pyroar out. Clembot confirms to Clemont that it feels good to win as Alvin sends out Cubone as his last Pokémon. As a Ground-type, Magneton's Thunder will have no effect on Cubone so Magneton is at a disadvantage. Cubone starts with Bonemerang which Magneton counters with Sonic Boom stopping the attack as Alvin orders a Brick Break which knocks Magneton out. As Clembot recalls Magneton, Clemont says it is upsetting to lose but by losing, he can learn to become stronger. Clembot takes his advice and sends out Heliolisk. Determined to get the Voltage Badge, Alvin orders Brick Break. Heliolisk keeps dodging as Cubone continues to attack as Clembot knows electric type moves will have no effect so orders a Dragon Tail which Cubone blocks and uses Bone Rush. Heliolisk counters with Focus Blast which stops Cubone but leaves Cubone still standing. Alvin is determined to beat Clembot and remembers what Clembot said before and orders a Bonemerang. Heliolisk counters with Focus Blast but the Bonemerang breaks through and knocks out Heliolisk giving Alvin the win. Clembot found the battle to be enjoyable and gives Alvin his Voltage badge. Ash congratulates Alvin as Serena says that Clembot battled well as Bonnie says that Magnemite, Magneton and Heliolisk all battled well as Clembot thanks them for cheering him on before telling Clemont he wishes to learn more about Pokémon and Clemont says he would love to teach him.

Later everyone gathers as Professor Sycamore says it is Kalos League award time and Serena remembers it never happened because of Team Flare. Bonnie suggests instead of awarding just Alain and Ash, they should award everyone as they all battled Team Flare. Professor Sycamore give Ash and Alain their medals and invites Alain to be his assistant again. Because of his work for Team Flare, Alain declines but Professor Sycamore says he and Lumiose City could use his help which he accepts. Later the group along with their Pokémon receive medals for their assistance as a photograph is taken. That night, a crowd gather around Prism Tower and a countdown commences as Meyer pulls a switch to turn the lights on as fireworks start to go off. As they celebrate the gym reopening. Clemont asks Serena what her plans are. She isn't certain but remembers Palermo's offer as Ash says she'll be fine and he believes in her.

Major events

Professor Sycamore's medals
For a list of all major events in the anime, please see the timeline of events.


Pokémon debuts



Pokémon Quiz


Who's That Pokémon?

Who's That Pokémon?: Psyduck (US and international)
Pokémon Quiz: Magneton (Japan)



The title card segment focuses on Clemont for this episode


  • When Professor Sycamore and Alain arrive at the laboratory, Serena's Braixen's ear tuft is shown to be behind Serena, but when the shot changes, it isn't.
  • When Ash commands Greninja to use Water Shuriken, Jessie commands Gourgeist to use Shadow Ball, but she uses Dark Pulse instead.
  • When Serena's Braixen uses Flamethrower on Gourgeist, Ash, Ash's Pikachu and Greninja, Alain and Alain's Charizard disappear from standing in front of the rest of the group only to reappear when Pikachu is commanded to use Thunderbolt.
  • When Cubone's Bonemerang is about to hit Heliolisk, the upper part of Heliolisk's mouth is colored yellow instead of black.
  • In the dub, Alvin commanded Vivillon to use Stun Spore when it was actually Sleep Powder.

Dub edits

In other languages

XY136 : Forming a More Perfect Union!
XY series
XY138 : The First Day of the Rest of Your Life!
Project Anime logo.png This episode article is part of Project Anime, a Bulbapedia project that covers all aspects of the Pokémon anime.