Moonstruck Part 1: Race to the Moon / Moonstruck Part 2: Lunar Fortress.Moonstruck Part 1: Race to the Moon: During the day, the PJ Masks and their class go to the museum and learn about the harvest moon and figure that since Luna girl likes the moon she is going to plan something bad. That night they jump in the Cat-Car and find out that Luna is going to the moon and decide to go after her. Gekko is scared and tries to say that Luna Girl is bluffing, but Catboy and Owlette aren't willing to take a chance and decide to go to the moon in their HQ Rocket. Gekko reluctantly agrees to go. When they arrive on the moon Gekko offers to stay with PJ robot and help repair the HQ Rocket that got damaged by Luna Girl while going to the moon, but Owlette and Catboy say that they think that they should all go after Luna Girl and Gekko admits that he is scared not just of going to Space, but also of being so far from home. Owlette says that that's Ok and that she felt the same way when she had her first sleepover. But Gekko asks if her first sleepover was on the moon. To which Catboy says no and that Gekko can stay and guard the ship while PJ robot fixes it. To which Gekko happily agrees. Catboy and Owlette follow Luna girl to where a harvest moon crystal is that will boost her power, when they catch up with Luna Girl she has already found the crystal, when they try to stop Luna with their powers they find that they don't work the same on the moon as on earth. Luna grabs the crystal and the crystal turns her Luna Magnet into a Luna Wand and she creates a Luna Fortress and when Catboy and Owlette come in she traps them in Luna crystals.
Moonstruck Part 2: Lunar Fortress: Luna Girl captured Catboy and Owlette while they were talking to Gekko who stayed behind in the HQ rocket with PJ robot. Gekko can't contact the other PJ masks while they are trapped so after PJ Robot convinces him that it is safe he goes to rescue them. Meanwhile, it has just dawned on Luna that Gekko isn't there and she decides to search for him. Catboy and Owlette try to contact Gekko to warn him, but inside the fortress, no connection can get through. Gekko goes to help them but gets trapped too. Since their powers don't work the same way on the moon as they do on earth, Catboy uses his Super Cat Speed to break their prisons while Luna goes to earth to bring everyone to the moon. But unfortunately, her Luna Wand lets her know that the PJ masks are escaping from the fortress. The PJ masks, to escape from Luna Girl, improvise since their powers don't work the same way there. And manage to get the Luna Wand away from Luna and get the harvest moon crystal out of the Luna Wand and turn it back into a Luna magnet. Then they take the harvest moon crystal back to earth, (where Gekko is ecstatic to be,) and put it in the PJ Vault. When Luna gets back to earth she resolves to get the harvest moon crystal back, paving the way for a Moonstruck part 3. The PJ Masks and Gekko are glad to be back home after such an exciting mission.