Kai's sister, Nya, is kidnapped and he must learn Spinjitzu from Sensei Wu, a mysterious old man, to rescue her.

Quiet Zane isn't like the other ninja. His weird humor sometimes gets him in trouble with Cole, Kay, and Kai--especially when he leads the ninja into a mission that ends in the destruction of their home in Sensei Wu's monastery. Now Zane must hope that a new path will rise from the monastery's ashes.

Cole, Zane, Jay, and Kai try to defeat a foe who can control the mind. One of them actually does fall under the spell of the Hypnobrai and the question for the rest is how will the fellow ninja react?

Cole, a member of Sensei Wu's team of ninja warriors, must keep his fellow ninjas' egos in check as he strives to unite the warriors and lead them on their dangerous missions. Sensei Wu must teach the Ninjago warriors the ancient art of spinjitzu in order to defeat Lord Garmadon, but first the ninja Jay, whose sense of humor is strong even in battle, must learn when it is the right time to be serious.

Pirates vs. Ninja -- When Lord Garmadon brings back to life the original owners of the ninja's ship, the Destiny's Bounty, the Ninjago must stop the pirates from plundering Ninjago City. Green Ninja -- When Lord Garmadon uses his mega weapon to turn back the clock and bring an ancient monster back to life, the Ninjago try to stop him, but end up being turned into children instead.

"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.

The Masters of Spinjitzu are stuck on a comet, having traveled through space to save the World of Ninjago from the Nindroids. As they race through the stars, it becomes apparent that they are not alone on the comet. Something has stowed away, something not of their world.

When Zane, the non-human member of the Spinjitzu team, is asked to join the nindroid ranks, he must decide if he will betray his friends.

Now that Nya's a full-fledged ninja, she learns that teamwork may be the most powerful force against evil.