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"Bubbles Of Badness"
Season 4, episode 25
(Overall episode #199)
Premiere date
United States of America United States of America
June 7, 2021[1]
Written by Tim Bain (Part 1) & Simon Nicholson (Part 2)
Directed by Christian De Vita
Episode Guide
"Pharaoh's Boomerangs"
"Ninja Power Up"

"Bubbles Of Badness" (also known as "Les Pyjamasques et Les Bulles de Méchanceté" in French) is the 25th Season 4 episode of PJ Masks. This is a 2-part special episode.


Octobella's vendetta against Gekko builds to unseen heights; Catboy and Owlette build a new vehicle of discovery and exploration, the PJ Sub.[2]


The following characters appeared in the episode "Bubbles Of Badness":


Part 1

The episode begins with Octobella and Percival spying on Gekko returning to HQ. Believing that she’s the only one to have fun in the moat, Octobella complains about him being there and plans to do something about it. The next night, Greg notifies Connor and Amaya about Octobella’s note found in his favorite book asking for help. Connor and Amaya believe that she’s in trouble, but he is not convinced, given what happened in the past. Nevertheless, they decide to investigate.

After finding Octobella through the PJ Picture Player, the PJ Masks approach her, who feigns being upset. She claims that Percival has disappeared, possibly captured by some villains, and begs them to help her find him, especially with the Gekko-mobile. Through the team’s insistence, Gekko reluctantly complies, although thinking that she’s tricking them.

His suspicions are soon proven true. While Catboy and Owlette search the city, Gekko finds Percival and follows him to a drain located in the canals, where he goes inside. Gekko swims out to look for him until he turns around to see Octobella in his vehicle driving away. The team regroups at HQ, but they can’t use the Picture Player to get it back. They apologize for not believing him, though he is still upset. To help him out, PJ Robot, accompanied by Catboy and Owlette, goes downstairs to build something.

Meanwhile, Gekko returns to the moat and chases Octobella. He grabs his vehicle’s tail, though she shakes him off by pressing a button on the control panel, then quickly spins him around. The reason for the increase in speed is because of the Pondstone Crystal. Octobella declares the Gekko-mobile to be hers now and drives away. Gekko returns to HQ upset.

Catboy and Owlette inform Gekko of a new submersible vehicle PJ Robot has been working on: the PJ Sub, perfect for underwater exploration. At first, Gekko declines because he wants his Gekko-Mobile back, but when the team convinces him that the PJ Sub can help, he accepts and, to the team’s concern, adds on that he can get Octobella. He invites everyone to join him, and they all dive into the moat.

The Gekko-Mobile soon appears through the PJ Sub’s scanners and headlights. Despite warnings to be careful, Gekko carelessly follows it to the end of the canals. Just as he thinks he’s got Octobella, she escapes. During the chase, he attempts to catch her using anything that can help him do so. Various objects are released, including a camera drone that takes her picture. Two claws are finally pulled out, but before he could catch his vehicle, he crashes into the ground. Octobella leaves, saying that she’ll go find a bigger pondstone crystal.

Nothing pulls up on the PJ Sub’s scanners, much to Gekko’s annoyance, so the team returns to HQ, where the pondstone batch appears on the PJ Picture Player. Although Catboy and Owlette warn that it may be too risky since they don’t know its powers, Gekko insists on taking it to make the PJ Sub more powerful and goes over to where it’s located by himself. However, once he grabs it and the vehicle powers up, it starts driving by itself. Octobella reveals that she had tricked him into getting the batch for her so she can take full control of the PJ Sub with the crystal that she has and thus make it hers.

After witnessing what’s happening, Catboy, Owlette, and PJ Robot enter the moat, the former two with new underwater gear. In the chase that follows, the three have Octobella crash into the PJ Sub. As she and Gekko go off in different directions, the pondstone crystal batch falls out and shatters, revealing a small stone. The team resurfaces and scolds Gekko for nearly wrecking the PJ Sub, which he blames Octobella for. Catboy assures him that they’ll get his Gekko-Mobile back tomorrow night. The team beings to proclaim their signature victory phrase, but Gekko stays silent and looks down at the moat.

Angry that Gekko has escaped, Octobella takes the remaining pondstone to her lair and mixes it with a potion and some seaweed to create a new concoction, which she then places in her conch: the Bubbles of Badness.

Part 2

The next day, as Connor and Amaya comfort Greg about what happened last night, including how Octobella is mean and picks on him, her bubbles appear from the canals and disperse around the town, taking his bike, art project, and the climbing frame. Some head over to his house, but the three are able to prevent them from going inside. All of the bubbles head into the moat afterwards. That night, Gekko takes off in the PJ Sub by himself, so Catboy and Owlette go over to the neighborhood and protect it.

At Octobella’s garden, she reveals that all the things she’s taken are Gekko’s favorite things. In addition to commanding Percival to keep an eye on them, she explains that she dislikes Gekko because although it was a long time ago and he didn’t know it was hers, he told her that he found the power pondweed. She also dislikes how he won’t let her be mean to him.

Gekko soon arrives to retrieve his belongings. He tries popping the bubbles with the PJ Sub’s claws, but when they prove to be unbreakable, he swims out to pop them with his Super Gekko Muscles instead. However, due to Octobella controlling them with the pondstone crystal, they move away. While Gekko tries to catch the bubbles, one takes the PJ Sub. Octobella disappears, and Percival swims up to the surface.

Meanwhile, Catboy and Owlette are protecting Gekko’s house. They contact Gekko for help, telling him to stay calm, and discuss the bubbles, but he is too mad to listen. During the discussion, Percival sneaks into his room and finds Lionel. Lionel is captured and brought down to the crystal garden. Octobella then blows two more bubbles that capture Catboy and Owlette, who have attempted to save him and tried to warn Gekko about what happened, and moves them around, all while teasing Gekko.

Infuriated, Gekko hits the pondstone crystal away with his tail; then when Octobella protects herself in a bubble, he uses his Super Gekko Muscles to throw her out of the moat. As he relaxes, he apologizes for using his powers to do something like that. Before he can take everything home, because of his blind rage, the crystal had shattered. All of the bubbles float into outer space, two of them trapping PJ Robot going outside and Newton, who has just come back from another galaxy to visit and notices everything floating upwards.

Gekko grabs the pondstone, returns to HQ, and blasts off. When he uses the claws to retrieve Catboy, he is flung away. Gekko opens the cat flap so he can place everyone in himself, but they are scattered everywhere. Owlette suggests the only way to save them is to use what’s left of the pondstone crystal since it still has power to control the bubbles. Unfortunately, because Gekko doesn’t know how to do so, the only one who can help him is Octobella herself.

Gekko boosts himself to Octobella’s bubble using his Super Gekko Muscles and asks her to teach him how to use the pondstone, who just angrily complains about him breaking it and not letting her be mean to him. He starts refraining from speaking to her, but after looking at his friends, he reconsiders. He assures her that he’ll save everyone, including her, because as a PJ Mask, it’s important for him to do the right thing. She finally agrees to help him.

With Octobella’s instructions on how to hold and use the pondstone crystal, although a tiny mishap happens, Gekko grips onto her bubble and moves her to HQ, then moves the rest of the bubbles inside. Once HQ returns to Earth, he moves all of them outside and sets everyone and everything free. He then informs Octobella that the crystal will be locked up when she commands him to give it to her. She vows vengeance and dives back into the moat, complaining about all the things the heroes are saying.

Gekko responds that he’ll deal with it next time as a PJ Mask, and the heroes proclaim the signature victory phrase.


  • Stay calm and think clearly; getting angry will have negative consequences.


  • This episode serves as the Season 4 finale.
  • This is the eighth special episode of the series.
  • A new vehicle is introduced in this episode: the PJ Sub.
  • Newton Star and Lionel meet Octobella for the first time.
    • Lionel also meets Newton Star and Percival for the first time.
  • Octobella drives the Gekko-mobile for the first time.
  • This is the last episode of Season 4 that focuses on Gekko.
    • This is also the last episode of the season that features Octobella as the primary villain.
  • This is the first time roman numerals have been used for numbering parts.
  • Greg mentions the time Octobella tricked and trapped him in "Octobella" and attempted to throw him out of the PJ Masks in "Octo-Trouble."
  • Octobella mentions the time in "Octobella" Gekko mentioned he found power pondweed back in "Power Pondweed."
  • Gekko controls the HQ rocket ship for the first time.
  • Catboy and Owlette get new underwater gear: water wings and flippers, the latter installed on their gravity boots.
  • This is the second episode to not show Newton Star in his daytime identity.
  • Octobella trapping Gekko's friends and favorite things in bubbles is similar to Shadow Moth using his sentimonster Sentibubbler to trap Rena Rouge's friends, family and cellphone in bubbles in the Miraculous: Tales of Ladybug and Cat Noir episode "Sentibubbler."
    • Both villains knew the identities of the superheroes they were threatening and imprisoned the superheroes' loved ones. However, Sentibubbler never managed to send the bubbles into space despite threatening to do so, while Octobella's bubbles unintentionally went to space due to a malfunction.
  • This is the last episode Roman Lutterotti voices Catboy before Evan O'Donnell takes over.
  • Percival enters Gekko's house for the first time.
  • This episode introduces the Bubbles of Badness.


Episode list
| Blame it on the Train, Owlette | Catboy's Cloudy Crisis | Owlette and the Flash Flip Trip | Catboy and the Pogo Dozer | Gekko and the Super Ninjalinos | Owlette's Terrible Pterodactyl Trouble | Catboy and the Shrinker | Owlette and the Moon-Ball | Catboy and the Butterfly Brigade | Owlette the Winner | Speak UP, Gekko! | Catboy and Master Fang's Sword | Catboy VS. Robo-Cat | Owlette and the Giving Owl | Catboy and the Great Birthday Cake Rescue | Gekko and the Snore-A-Saurus | Looking After Gekko | Catboy and the Teeny Weeny Ninjalino | Catboy's Tricky Ticket | Gekko and the Missing Gekko-Mobile | Catboy's Flying Fiasco | Gekko's Stay-at-Home Sneezes | Gekko Saves Christmas | Gekko's Nice Ice Plan | Gekko and the Mighty Moon Problem | Clumsy Catboy | Catboy and Gekko's Robot Rampage | Owlette's Feathered Friend | Owlette and the Battling Headquarters | Gekko and the Mayhem at the Museum | Catboy Takes Control | Owlette's Two Wrongs | Gekko Floats | Catboy's Two-Wheeled Wonder | Catboy's Great Gig | Owlette's New Move | Supersonic Owlette | Catboy and the Sticky Splat Slingshot | Owlette of a Kind | Beat the Drum, Catboy | Catboy Squared | Gekko's Super Gekko Sense | Owlette and the Owletteenies | Gekko's Blame Campaign | Owlette and the Moonflower | Slowpoke Gekko | Catboy and the Lunar Dome | Gekko and the Rock of All Power | Super-Sized Gekko | Take to the Skies, Owlette | Slow Down, Catboy! | Gekko's Special Rock |
| Moonfizzle Balls | Soccer Ninjalinos | Lionel-Saurus | Catboy's Cuddly | Night of the Cat | Catboy Does It Again | Terrible Two-Some | Owlette's Luna Trouble | Ninja Moths | Who's Got the Owl Power? | PJ Pinball | Bounce-a-Tron | Wacky Floats | Romeo's Disguise | PJ Robot | PJ Power Up | Moonstruck: Race to the Moon | Moonstruck: Lunar Fortress | Robot's Pet Cat | Gekko, Master of the Deep | May the Best Power Win | Moonbreaker | Race Up Mystery Mountain | The Mountain Prisoner | The Wolfy Kids | Wolf-O-Saurus | Catboy No More | Gekko Vs. the Splatcano | Meet Armadylan | Invisible Owlette | Wolfy Mountain | Romeo's Crystal Clear Plan | Nobody's Sidekick | Armadylan Menace | Power Pondweed | Owlette Comes Clean | Halloween Tricksters | The Wolfies Take HQ | The Good Wolfy | The Wolfy Plan | The Lizard Theft | PJ Dylan | Armadylan'd and Dangerous | Romeo's Action Toys | The Dragon Gong | Flight of the Ninja | Romeocoaster | Gekko and the Opposite Ray | PJ Masks Vs. Bad Guys United | Easter Wolfies | Luna and the Wolfies |
| Moon Madness | Armadylan and Robette Rule | Armadylan Zen | Way of the Woofy | Werejalinos | PJ Comet | Glowy Moths | Teacher Goes Ninja | Robot Goes Wrong | Lionel's Powers | Best Friends Forever | Meet An Yu | The Moon Prix | Pirates Ahoy! | The Secret of the Pagoda | Storm of the Ninja | Arma-Leader | Owlette Slips Up | The Splat Monster | Moth on the Moon | Fly Me To The Moon | Luna's Cosmic Tantrum | Motsuki The Best | Wheels of a Hero | Moonwolfy | Clash on Mystery Mountain | A Teeny Weeny Problem | Take Romeo Off The Road | Mission: PJ Seeker | Wolfy Powers | Do The Gekko | Armadylan, Action Hero | Super Muscles Show Off | The Prank Wheelz | Where's The Wolf Wheelz? | Villain of the Sky | Protector of the Sky | The PJ Masks Save Christmas | Romeo's Melody | PJ Robot Takes Control | PJ Sky Pirates | The Disappearing Ninjas | Gekko Everywhere | Gekko Takes Charge | Big Sister Motsuki | PJ Party Crasher | Master of the Moat | PJ Robot Vs Romeo |
| Heroes of the Sky | Who Let the Moths In? | Commander Meow | Motsuki's Missing Sister | Not so Ninja | PJ Party Mountain | Wolfies of the Pagoda | Master Fang's Secret | Aerodylan | Asteroid Accident | All About Asteroids | Romeo's Space Machine | Newton and the Ninjas | Missing Space Rock | Flying Factory Out of Control | Munki-gu | Munki-gu in the City | Mission Munki-gu | Legend of the Wolfy Bone | Gekko Vs Armavillain | Super Super Cat Speed | Munki-gu's Dragon | Gekko Loves Lionel | Octobella | Octo-Trouble | Star Buddies | To the Moon and Back | Magnet in the Moat | Motsuki Bugs Out | Octobella's Garden | Sploshy Splash | Teeny Weeny Returns | Robo-Wolf | The Labours of Armadylan | Lost in Space | The Power of Monkey Chatter | The Secret of Monkey Goodness | Pharaoh Boy | By My Pharaoh Feathers | Pharaoh's Chariot | PJ Robot Malfunction | The Mysterious Masks | Battle Of The Fangs | Catboy's Cat | Mad With Moon Power | Pharaoh and The Ninjalinos | Pharaoh's Boomerangs | Bubbles Of Badness |
| Ninja Power Up | Luna Goes Too Far | Owly Tricks | Newton The Destructor | Luna Kazoomer | Baddie Bots | Newton and the Animals | Octobella Strikes Again | Octobella on the Loose | Teeny Weeny to the Rescue | Invisible Munki-Gu | Orticia Blooms | Orticia and the Pumpkins | Pirate Robot | Owlette, the Pirate Queen | Catboy's Magic Trick | Gekko The Croc | The Camping Trip | Pondweed Party | A Percival Problem | Luna Girl's Sleepover | Dragon Dance | An Yu and the Cave Stones | Midnight Snack Attack | The Voyage of the Golden Asteroid | Carly and Cartoka | The PJ Riders | Flashcar in the Sky | Luna's Mega Moth | Captain Pirate Robot | Crash Track Trick | Gekko's Speedy Lizard | Night Ninja's School of Ninja Naughtiness | The Jolly Ninjalino |
To be announced.
| Super Cat Speed | Super Gekko Muscles | Owl Eyes | Reinvention | Moth's Day | Super Moves Dance Party | Super Gekko Camouflage | Teamwork | All Skills | Determination | Gekko Improvises | Super Singing Heroes | Team Night Ninja | Super Cat Ears | Owlette Improvises | A Job For All | Bravery | Catboy Improvises | Taking Turns | Training with the PJ Masks | Moon Rocked | Play Date on the Moon | Space Race | Cat-Car Chaos | Gekko-Mobile Mischief | Robots Wash Up | Owl-Glider Gliding | Armadylan Style | Wolfy Garden | Bye Bye Bad Luna | Catboy Power Up | Owlette Power Up | Gekko Power Up | Masters of the Mountain | Moon Cuddly | The PJ Rovers | PJ Racing | An Yu's Bird Rescue | PJ Masks Surprise | Ninjability | HQ Tour | Minding Motsuki | It's A PJ Masks Christmas | Learning the Planets |