This episode article is in need of a synopsis. A synopsis is intended to be a very detailed description of what occurs in the episode.
Don't be selfish, and share with others.
This is the second time that Night Ninja works with the PJ Masks, but it happened later, since they acted neutral and attempted to give advice to Night Ninja and the Wolfy Kids on sharing Mystery Mountain.
The first who worked with the PJ Masks was "Ninja Moths".
Night Ninja meets the Wolfy Kids - Howler, Rip and Kevin - for the first time.
The Ninjalinos reveal to have names when Night Ninja called the Ninjalino that hurt his leg, Marvin.
The Ninjalino that was known as Marvin is also known as Maxime in the French version.
This is the fourth appearance of Mystery Mountain.