"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?" -- p. [4] of cover.

"Laval has obtained eight Fire Harnesses that may save his kingdom from the Ice Hunters. But first he and Eris must somehow get past the Vultures to make it to the Lion Temple and get to his father, King Fluminox! Meanwhile, Cragger must lead a tribe of Beavers to fix the strategically important Great Lion Bridge that was virtually destroyed by Sir Fangar, and lead a battle against the Saber-Tooth Tigers!" --

After flying through an electrical storm, ninja Jay crash-lands in an alternate world where Sensei Wu never taught the ninjas the art of spinjitzu and the Serpentine rule with skeleton warriors as their servants.

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.