Each week, contestants are set tasks to build items out of LEGO in line with a designated theme and are judged on their results. Contestants are then eliminated from the competition on a knock out basis culminating in a winner

After the events of Ninjago: Masters of Spinjitzu (2011), the ninja: Kai, Jay, Cole, Zane, Lloyd and Nya, face even greater threats who want to disturb the peace in the land of Ninjago.