Quando o novo trem da cidade desaparece, Corujita está determinada em recuperá-lo.

Menino Gato precisa salvar o verão da Garota Luna, mas ele precisará superar seu medo da água.

Quando Romeu apaga todas as histórias dos livros, Corujita pede a ajuda de Flossy Flash.

Romeo usa luvas de box para invadir o museu e roubar uma mochila a jato.

O Ninja Noturno rouba todos os equipamentos esportivos do Dia dos Esportes para os Ninjalinos.

Romeu rouba uma réplica de pterodátilo da Exposição de Dinossauros e o transforma em um robô voador!

Romeu e o Ninja Noturno se juntam para encolher os PJ Masks com a invenção encolhedora do Romeo.

A Garota Lunar cria uma bola gigante e escolhe todos os brinquedos que ela roubou.

Culpando suas mariposas por antigas derrotas, a Garota Lunar rouba um monte de borboletas para serem suas novas ajudantes.

A Garota Lunar e Corujita competem pelo brinquedo mais legal.

Romeu rouba a voz de Lagartixo, mas ele não tem certeza se a quer de volta antes da apresentação de poesia.

O Ninja Noturno rouba a preciosa espada do Mestre Fang!

Menino Gato precisa recuperar os pijamas de Amaya e de Greg, que Romeu roubou!

A Garota Lunar rouba a valiosa estátua da "Coruja para Doar" de Corujita, para decorar seu novo quartel-general.

É o aniversário de Lagartixo, e ele está animado com sua festa de lagarto até que o Ninja Noturno rouba tudo!

A Garota Lunar transforma o Cameron sonâmbulo em seu boneco particular.

O Ninja Noturno rouba o ônibus da escola e o transforma em seu próprio superveículo!

Os PJ Masks descobrem um Ninjalino superpequenininho no QG.

Menino Gato só tem dois ingressos para o show de Jayden Houston, e precisa decidir qual dos seus melhores amigos levar.

Lagartixo perde o Lagartixomóvel justo quando mais precisam!

Algo não cheira bem quando Menino Gato ganha um patinete de uma tia desconhecida.

Lagartixo está espirrando, e seus amigos querem que ele descanse dentro do QG.

A Garota Lunar está roubando presentes de Natal!

Com sua nova invenção malvada, Romeu planeja transformar a cidade em um enorme rinque de patinação no gelo.

Romeu planeja usar sua nova criação para deixar todo mundo no mundo tão desastrados que não poderão impedi-lo!

Romeu cria um laser espacial para esculpir seu rosto na lua.

The playground equipment was stolen by Robot because Romeo made a new robot called Robette. Robot was jealous.

A bird invades the HQ. Luna Girl reveals she is going to turn HQ into a giant Luna Magnet.

PJ Masks see Ninjalinos stealing school buses. Night Ninja makes his HQ out of the stolen school buses.

Romeo wants to take over the town with his latest invention - the 'Big Box of Bad'.

Romeo steals the inside of the PJ Masks remote control helicopter for his new remote to control people.

The PJ Masks work to stop Nigh Ninja from destroying the museum.

Romeo uses his Anti-Gravity Maching to try to send the HQ to the moon.

Romeo steals cars and the PJ Masks Super-Vehicles.

Night Ninja steals the school's instruments. He wants to use them for his own concert.

Romeo wants to take over the world by using his three machines: his Robot, his La-Boggan and his Track-A-Whacker.

Romeo broke into HQ. He says he needs to know how to bring up the PJ Picture Player "in peace", so he teleported the PJ Masks outside of HQ.

The PJ Masks find out that Night Ninja is doing his biggest, baddest night-time villain move ever: the Sticky Splat Slingshot. Catboy, however, wants the mission to be his biggest save yet.

Romeo steals Owlette's powers and turns himself, Catboy and Gekko into fliers.

Night Ninja plans to turn Catboy's daytime parade into the Night Ninja Parade Spectacular.

When Greg doesn't take care of Cameron's mini-car, it goes missing!

Night Ninja challenges the PJ Masks to a game of Capture the Flag with the PJ Mask headquarters as the prize.

Romeo's multiplying machine accidentally makes Catboy copies.

By day, Connor and Amaya were at the Cafe, then Greg showed up, telling Connor and Amaya about the car Cameron let him borrow for the day.

By day, the trio are working on sunflowers for the sunflower competition. Connor and Greg notice that Amaya's flower isn't so healthy, and they give her advice.

In the day, the trio discovers slow moving people and animals. As the PJ Masks, they discover that Romeo invented a slow motion ray so everyone will be too slow to stop him from conquering the world. But Gekko keeps getting distracted, causing him to be hit by the slow motion ray. He comes up with a plan for Catboy and Owlette to distract Romeo, while he slowly makes his way to destroy the slow motion machine.

At day, Connor is trying a new dance move called The Tornado except he messed up and ended up being laughed by the kids. Then, while Connor, Amaya, and Greg are walking back to their school, one of Luna Girl's moths gave the kids an invitation to her party, but they soon become suspicious of her plan and the trio transforms later at night. Luna Girl appears with the speakers and streamers for the party. She states that the PJ masks aren't really guests, but they are victims of her Lunar Dome, and traps them. Luckily, the dome doesn't cover the whole HQ since it's only in a half circle so the PJ masks suggest that digging underground is the only way out. Unfortunately, an embarrassed Catboy thinks of other ideas despite Owlette and Gekko telling him that the Super Tornado is the only key to escaping the dome. When Greg, Connor and Amaya were in the library reading books, Greg found a book about the strongest athletes in the world that won many medals and trophies.

Greg wondered if he could win at least one medal to declare him being strong. By the time they went out of the library, they saw lamposts being bent. By night, they saw Night Ninja chasing a rock called the Rock of All Power. Amaya heard about the rock in her Kung Fu book that whoever breaks the rock will be awarded with a medal. Gekko was so tempted to break the rock to get the medal since he has the power of strength instead of protecting his friends and their HQ. But while he tries to stop the rock, he breaks it, not meaning to. He says that he felt stronger than ever, and that true strength comes from caring for your friends. That is the best strength.

Luna Girl steals parade floats!

Connor, Greg, and Amaya are preparing for a school race, but the trophy was stolen. In the night, they find out Night Ninja took the trophy. He proposes a race between himself and Catboy, with Luna Girl as the referee. What she really wants is the trophy for herself. Catboy keeps messing up because he kept going to fast in each competition. Owlette and Gekko try to convince him to take his time, as slow and steady wins the race. Finally, he comes up with a plan and offers one last race with the two villains. This time he slows down and wins the race, with the other two competetants losing. The PJ Masks return the trophy to where it belonged.

Greg accidentally leaves his rock at the museum. He and his friends go back to get it, only to discover all the magnetic rocks are gone. By night, they find that Luna Girl stole the rocks for her Luna magnet to pick up bigger things, like vehicles. She uses them to try and destroy things, including the PJ Masks. But instead of trying to get the mission done, Gekko tries to go after his rock, and that causes the heroes to struggle to get the mission to a success. His friends tell him that's it's not important like the mission is, and he sacrifices his rock to stop Luna Girl.