A few months after finding Brim, the ninja are at peace with the new Mako but a mystery is upon them as they got a message saying If Youre Looking For Me Give A Ninja From The Masked Master. The Ninja were confused but found a map on the back of it saying to go to The Cliff Of Moja to find him.Brim had feared him for ages as The Masked Master was his apprentice that tried to show Brim the dark side of a person but Brim betrayed him so he could be good. All the ninja went including Nya to see what the Masked Master wanted but theyre was no one there. They thought it was a trap and they were right as Kai and Nya was pushed off the cliff straight into the water. Kai and Nya didn't have long until they fell into the waterfall and drowned but Zane goes and freezes the water so that Kai and Nya didnt die but the ninja were all pushed of to the ice where they were saved by a new ninja who was the elemental master of steel and he trapped the Masked Master in a steel chamber. The ninja thank him and he reveals be called Aiden. When the ninja return to Mako, Kai and Nya reveal that they are leaving and are giving they're power to Ray and Maya, Kai and Nya's Mum and Dad and they walk away.