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PJ Masks Wiki

"Clash on Mystery Mountain"
Season 3, episode 15A
(Overall episode #129)
Clash on Mystery Mountain title card.png
Premiere date
United States of America United States of America
October 11, 2019
Written by Brad Birch
Directed by Christian De Vita
Viewer count (millions) TBA
Episode Guide
"A Teeny Weeny Problem"

"Clash on Mystery Mountain" (also known as "Tatouro'Tom rencontre Flamme rouge" in French) is the first segment of the 15th Season 3 episode of PJ Masks.


Night Ninja tricks Armadylan into stealing An Yu's bo staff and takes control of the Mountain again.[1]


The following characters appeared in the episode "Clash on Mystery Mountain":


The episode begins with Connor, Amaya, and Greg heading towards the playground. Upon their arrival, Greg points out the Armadylan signal drawn in the sandbox. With it is a note from Armadylan saying that he got their “message” and that he will meet them “there”. At night, after the PJ Masks transform and head to HQ, PJ Robot shows them through the PJ Picture Player that Armadylan is entering through the Mystery Mountain portal.

The team takes off in their PJ Rovers and head to Mystery Mountain. Once they reach the foot of the mountain, Owlette uses her Owl Eyes to spot Armadylan climbing up the summit. Knowing that An Yu doesn’t like people showing up unexpectedly, the group runs up before anything could happen.

Meanwhile, An Yu, who is taking care of one of her plants, gets a warning signal from her staff of an intruder. She flies down and stops a rolling Armadylan halfway up the mountain. She asks him what is he doing here, to which he responds that he is helping his friends defeat a dragon person. Immediately, he realizes that An Yu is the person he described, and assumes that she is the villain of the mountain. He attempts to stop her, but An Yu swiftly and expertly dodges his every move, until he uses his Thunder Thump. An Yu is knocked down, and Armadylan continues climbing, grabbing her staff that she dropped during their confrontation.

Back in the bamboo forest, Night Ninja appears with Teeny Weeny. Using one of the scrolls from the museum, the two teleport to the summit and get into position. Armadylan arrives, and when he steps on a trap, the dragon statues fire Sticky Splats at him, pinning him to the ground. He drops the staff, and Night Night obtains it. He reveals that he was the one who sent the note, much to Armadylan’s dismay and embarrassment. He tricked him into thinking that An Yu is a villain so he can stop her and grab her staff since she is powerless without it. Now that he has it, he is going to send her back into the Dragon Gong forever so she will never interfere with him.

Night Ninja hits the staff against the Dragon Gong to transform it into the Dragon Mallet. An Yu quickly arrives, but stops in her tracks when she sees Night Ninja with the transformed staff and realizes what he is going to do. Hearing this conversation, Teeny Weeny tries to stop the villain from doing so, but he hits the gong, and An Yu is sent back. Night Ninja then makes his way into the pagoda to unlock its secrets, and Teeny Weeny reluctantly follows him.

The PJ Masks soon arrive and find Armadylan. He tells them about Night Ninja, that he tricked him into getting An Yu’s staff so she can be trapped in the gong again, enabling him to go inside the pagoda and unlock its secrets. Gekko helps Armadylan out of the Sticky Splats, and expressing his desire to help, the group makes their way to the pagoda to retrieve the staff. Inside, Teeny Weeny sets the scrolls up in a circle near the cabinets where the secrets are locked. He overhears the PJ Masks coming, but Night Ninja is not fazed by this, knowing he will easily stop them, just like he did with Armadylan and An Yu.

Night Ninja asks Teeny Weeny to give him the invincibility scroll. However, after feeling remorse of the recent events that took place, Teeny Weeny refuses, much to the villain’s surprise. He grabs one of the scrolls and the Dragon Mallet and leads Night Ninja on a chase. He arrives at the Golden Dragon Statue, and proclaiming that “it’s time to be a hero,” he chants the spell written just as Night Ninja grabs him, kicks the mallet away, and the two disappear, just as the heroes run inside.

Astounded, the group picks up the museum’s scrolls scattered on the floor and the Dragon Mallet. They run back outside, hit the Dragon Gong two times, and An Yu is set free again. She wonders where Night Ninja and Teeny Weeny went, but when the PJ Masks tell her about their sudden disappearance, she understands that Teeny Weeny used the Vanishing Scroll to transport him and the villain out of the mountain and back into town. The PJ Masks then introduce Armadylan to An Yu, and explain to her that Night Ninja tricked him into thinking that they needed his help to capture her, thinking that she was a villain. Armadylan apologizes to An Yu for assuming her as a villain and stealing her staff and promises to never let it happen again.

An Yu cautiously forgives Armadylan. Gekko then responds that now everything is okay that she and Armadylan can be friends again, but she tells him that she was never friends with Armadylan. Armadylan tells her, though, that he is not so bad once she gets to know him, and that it could be possible to become friends. The PJ Masks confirm this with a laugh, and Armadylan holds out his hand towards her. An Yu doesn’t make a move at first, but after a few seconds, she warms up to him, and she shakes his hand, confirming their friendship. To celebrate, the heroes cry out the PJ Masks’ signature victory phrase, and the episode ends.


  • Don't get tricked.
  • You should stand up for yourself no matter what anyone says.
  • You have to be careful of who you trust.


  • This is the fourth time Night Ninja doesn't appear with his Ninjalinos (other than Teeny Weeny).
  • Armadylan meets An Yu for the first time.
  • An Yu's dragon form appears for the third time.
  • Teeny Weeny says "Time to be a hero" for the first time.
  • This is the third time the inside of the pagoda is seen.
  • The Dragon Gong is seen for the fourth time.
    • Its first appearance was in "The Dragon Gong," the second was in "Meet An Yu," and the third was in "Storm of the Ninja."
  • Teeny Weeny is the third (former) villain to say "Time to be a hero."
  • This is the fourth time An Yu joins in the PJ Masks' victory phrase.
  • In this episode, Armadylan calls An Yu "Miss Dragon."


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 |
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 |