The episode starts off with the PJ Masks forming the PJ Air Jet with the updated Cat-Car, Owl-Glider, and Gekko-mobile and taking it for a special test flight. Armadylan sees the aircraft and wishes to have a jet like the team does, especially during situations where he encounters the ninjas throwing Sticky Splats at him, like the one he is in now. Night Ninja sees the team’s jet as well and expresses his desire to take it for himself. The ninjas take off, but not before one of the Ninjalinos throws one more Sticky Splat at Armadylan.
The next day, Connor, Amaya, and Greg run over to the playground sharing their praises about the PJ Air Jet. They walk over to the sandbox and see that Armadylan has left a note, saying that he needs their help and wants to meet them at HQ.
That night, PJ Robot lets in an annoyed Armadylan with a couple of Sticky Splats on him. Wanting to do something about the ninjas, he wants to use the PJ Air Jet to catch them, but the aircraft is not appropriate to use in this situation. The heroes need to investigate first, as the ninjas are always planning something. Since Night Ninja is suspiciously not around while the Ninjalinos are making a mess in the city, the PJ Masks decide to track him on foot to find out what is going on.
The heroes head outside and split up, Armadylan disappointedly walking off to investigate his portion of the town. Night Ninja and his Ninjalinos spy on them, and they split up as well to distract them. The PJ Masks spot the Ninjalinos and try to chase them down in hopes of finding out what the ninjas are up to, but they are quickly sticky-splatted; Catboy is stuck on a building, and Owlette and Gekko are trapped on a Sticky Splat web.
Meanwhile, Armadylan arrives at the museum, still looking for any signs of ninjas. He contacts the team, and they tell him about what happened. He asks about doing a fly-by since he cannot find any ninjas, but they decline and ask him to come get them. Suddenly, Night Ninja appears and mocks Armadylan about how he is not allowed to do any flying, especially with the PJ Air Jet. He throws a Sticky Splat at him and jumps off.
Now fed up, Armadylan quickly rolls back to headquarters to get the PJ Air Jet. PJ Robot, who is finishing up a movie, tries to stop him from pressing anything as the PJ Picture Player activates, but he presses the PJ Air Jet button on the control panel. The PJ Masks’ vehicles jump out of the building to form the special aircraft. Armadylan gets in the pilot’s seat, and the vehicle takes off. Before it takes to the skies, though, the ninjas, who are hiding behind the bushes, use their splat grabbers to board.
As Armadylan flies into town and takes care of a couple of Ninjalinos using the jet’s wind gusts, PJ Robot contacts the PJ Masks and tells them that Armadylan has taken the aircraft. Catboy contacts Armadylan and tells him to land and help them. However, Armadylan notices from a sticky splay thrown from behind that Night Ninja and his Ninjalinos have boarded the vehicle. Night Ninja gets in the pilot’s seat as the Ninjalinos trip Armadylan, and he is sent plummeting to the city’s canals.
The ninjas fly around with the PJ Air Jet and drop Sticky Splats to splat the entire city. Armadylan recovers and helps the PJ Masks out of their Sticky Splat traps. The heroes head back to headquarters to find a way how to stop the ninjas, but because of how much time the PJ Air Jet has been used, the building is losing its power, and so are the PJ Masks. Armadylan apologizes about what happened. He just got so mad about the ninjas that he did not think things through before doing anything. Fortunately, it is not too late to apply this concept in what they need to do to defeat the ninjas.
Using the PJ Wings, the PJ Masks take off to the sky with Armadylan in Gekko’s grasp. Owlette blows the PJ Air Jet off course, while Gekko and Armadylan board and hold on to its wings. Catboy and Owlette fly inside and try to use their powers to get rid of the Ninjalinos, but their powers are fading. They get out of the Ninjalinos’ way as they try to capture them, though, and they fall out of the vehicle, although parachuting down safely. Gekko almost falls off the wing as his power is fading as well, but Armadylan saves him.
Night Ninja attempts to get rid of the heroes by flying around carelessly, but he loses control. He abandons the jet, and the PJ Masks regain control and safely land. With the ninjas defeated and everything and everyone now safe, the PJ Masks offer Armadylan a chance to fly them and the PJ Air Jet back to headquarters. Armadylan happily accepts, and the heroes cry out the signature victory phrase as they head home, with Night Ninja calling for help as his parachute is stuck on a lamppost.
Look before you leap.
Think things through with your friends.
Think before you act.
Armadylan flies the PJ Air Jet for the first time.
Night Ninja is the first villain to drive the PJ Air Jet.
Alley Cat and Ruffles star in a movie that PJ Robot watched.
Night Ninja has his own pilot hat.
The PJ Jet reveals to drain the PJ Crystal power and the PJ Masks' powers when it's used too much.
Catboy and Gekko use their PJ Wings for the second time.