- You're not to blame for this. Don't do this to yourself. You're the best person I've ever known. Don't let them tell you who you are. You're more than just Lord Garmadon's son. You're Lloyd, my best friend. - That was the purest truth. But the others didn't think so. Trouble awaited us around every corner. It was almost impossible to survive in a school-well, should I say a school? - In high school. The classes are exhausting enough, but recess? A nightmare. I only knew that I would never abandon Lloyd. Never. Just like my friends.

Nya is captured by Dalcom, a former colleague of Master Wu and Elemental Master of the Mind. He is known as the Controller, the shadowy master who lives in the Hiroshi Forest. What does he want? The Mind Stone, a jewel that grants its bearer immeasurable power against their enemies. Nya knows the Gem's hiding place, but is determined to keep the secret for as long as possible. Kai and Jay are sent on a mission to rescue her. Will they be able to escape the Oni, servants of the Controller? Will they rescue Nya and defeat him? An exciting narrative, full of adventure, friendship, and unity, where the Ninjas will learn to correct and master their mistakes, and prepare themselves, both physically and mentally, for the battle ahead. Of course, all this is just another normal day in Ninjago.