Lloyd Garmadon, former evil-lord-in-training and secret ninja hero, has worked for years to pull the wool over the eyes of the people of Ninjago. When his father fails for the final time to conquer Ninjago City and is sentenced to life in prison, it's time for Lloyd to put his own plans in action.

It was the defeat of Lucemon and things didn't go according to plan. Koji Minamoto is trapped in the digital world, possibly dead, and none of his friends can get to him. Years are passing and evil forces are on the rise, but without the aid of the legendary warriors, who will save the digital world?