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"Teacher Goes Ninja"
Season 3, episode 5A
(Overall episode #111)
Teacher Goes Ninja Title Card.png
Premiere date
United States of America United States of America
May 31, 2019[1]
Written by Simon Nicholson
Directed by Christian De Vita
Viewer count (millions) TBA
Episode Guide
"Glowy Moths"
"Robot Goes Wrong"

"Teacher Goes Ninja" (also known as "Bibou et le Professeur Ninja" in French) is the first segment of the 5th Season 3 episode of PJ Masks.


Night Ninja kidnaps the PJ Masks' Teacher.


The following characters appeared in the episode "Teacher Goes Ninja":


The episode begins at school, where Connor, Amaya and Greg are discussing their teacher. All agree that he’s cool, and that his lessons are of great value to them as heroes. Then, to their surprise, Teacher shows up and announces they will be teaching ninja moves that day. Except for Cameron, all kids consider this strange, and Amaya decides they have to investigate.

That night, when they are the PJ Masks, the three heroes visit Teacher's house, where they see Teacher practice more ninja moves, even though he should be in bed by now. They confront him, and he attempts to fight them off (but this only results in him falling to the ground). Then Night Ninja and his Ninjalinos show up, and to the PJ Masks’ surprise Teacher refers to Night Ninja as "Master." According to Night Ninja, the teacher is secretly an evil ninja by night; something Owlette refuses to believe. The Ninjalinos trap the PJ Masks in sticky splat, after which the ninjas, and Teacher, go to Mystery Mountain.

The PJ Masks free themselves and also go to Mystery Mountain, where they confront Night Ninja again. Night Ninja keeps claiming that Teacher is a true ninja, and that none of this is his doing, but Owlette doesn’t believe him. Teacher and the Ninjalinos try to crush the PJ Masks with a large boulder, but Gekko is able to stop it with his super strength. They follow Teacher deeper into the mountain, where they find him meditating. Seeing her chance, Owlette tries to make Teacher remember who he used to be. But before she can get through to him, the Ninjalinos attack again and trap the PJ Masks in a prison.

Now that he captured the heroes, Night Ninja finally admits that he is responsible for Teacher's current behavior; weeks ago, he sent the Teeny Weeny Ninjalino to put some magic gems on Teacher's teddy bear, causing it to hypnotize Teacher into becoming a ninja at night. And now that he trapped the heroes, Night Ninja intends to hypnotize other teachers as well and have them train their classes to be ninjas too.

Catboy and Gekko try to break out of the prison, but their powers prove useless against it. When Owlette however remarks how she considers Teacher to be the best teacher ever, he briefly stops practicing his ninja moves. Realizing that they can get through to him after all, the heroes keep reminding Teacher of the things he taught them. Catboy coaxes Teacher into showing them the super sideways flip, and when he does, Catboy uses his cat stripes to make Teacher bump into the lever that opens the prison’s door.

With Teacher now on their side, the PJ Masks seek out Night Ninja. Gekko defeats the Ninjalinos, and Teacher defeats Night Ninja. Owlette removes the gems from Teacher’s teddy, restoring it to normal. With the ninjas defeated, Teacher falls asleep and the PJ Masks celebrate their victory.

The following day, Teacher has evidently forgotten about his adventures as a ninja, but is still tired from the night before.


  • There is good inside everyone.


  • This is the first time an episode title involves with the name 'Teacher'.
  • This is the first time a villain has interacted with the PJ Masks' Teacher.
    • This is also the first time Night Ninja meets the Teacher.
  • The Teacher narrates an episode title for the first time.
  • This is the fourth appearance of the Teeny Weeny Ninjalino.
  • This is the first appearance of Teacher's house.
  • It is revealed that Teacher has a cuddly of Teddy.
  • Although the Teacher meets the PJ Masks at the night, the trio didn't deepen their voices like they previously did in "Halloween Tricksters."
    • But it is stated by Owlette that they wear masks in their superhero identities so that the Teacher won't know who they're really are.
  • This is the first time the Teacher goes to Mystery Mountain.
  • This is the first episode to focus on the Teacher.
  • Amaya calling the Teacher the best teacher ever is just like Ladybug's civilian form Marinette calling her teacher "the best teacher in the world" in the Miraculous: Tales of Ladybug and Cat Noir episode "Zombizou."
    • Additionally, both briefly tried to snap their teachers out of the villains' control, and claimed their teachers as the best teachers when said teachers were affected by villains.


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 Naughtiness | The Jolly Ninjalino | The Power of Mystery Mountain | Slow and Sneaky | The PJ Riders Save the Day |
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 |