On the mythical island of Okoto, the forces of darkness are on the move. To defeat evil, the island Protectors call on the help of six elemental heroes known as the Toa.

Master Wu and the Ninjago journey to Dark Island, where an imbalance between good and evil is growing, and the ninja will have to use their mastery over the elements to stop the end of the world.

Jay, Cole, Zane, Kai, and Sensei Wu are strangers in an even stranger land-- Garmadon City! But the name is not what's strange! The fact that everything is made of stone-- the streets, the buildings, the trees, even the people!-- that's the really strange part. But how do you save people who have been turned into stone who don't want to be saved, and will do anything to stop you?"

Armed with the power of Spinjitsu, Sensei Wu and his four ninja--Cole, Zane, Jay, and Kai--are up to the challenge when Samukai bets Garmadon that he can defeat Wu and his ninja, with both the world and the Underworld as the winner's prize.