Kay es el hijo de un herrero y su sueno es llegar a ser como su padre. Hasta que un dia un ejercito de esqueletos guerreros asalta su aldea y secuestra a su hermana, Nya. La unica esperanza de Kay de rescatar a su hermana esta puesta en Sensei Wu, un anciano misterioso que tiene una mision. Sensei Wu le promete a Kay ensenarle Spinjitzu. Sera eso suficiente para salvar a Nya? Kai's sister, Nya, is kidnapped and he must learn Spinjitzu from Sensei...

"Sensei Wu has sent Cole, Jay, Kai, and Zane on their first mission. The four Ninjago warriors must recover the Scythe of Quakes, one of the Four Golden Weapons, before they can go head-to-head with Lord Garmadon. But Kai has his own ideas about how to recover the Weapon. Can Cole, Jay, and Zane convince him they're all playing for the same team?"--p. 4 of cover.

Under the leadership of Sensei Wu, the Masters of Spinjitzu, joined by a contrite Lord Garmadon and his son Lloyd, travel throughout the world to dismantle the doomsday devices that were set up by Garmadon and timed to activate in the event of his defeat.

"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?"--Page 4 of cover.

When one of his publicity stunts to help his friends take advantage of having defeated the Preeminent goes wrong, Dareth, the Brown Ninja, finds himself in trouble and surrounded by angry warriors.

"Pytho P. Chumsworth, the last of the Anacondrai, has shed his skin many times. The ninja have defeated him over and over again, but somehow Pythor always manages to bounce back. When Pythor hears about the BorgWatch--a top secret new invention from Dr. Cyrus Borg--he sees an opportunity to best the ninja in a new and different way. He swipes part of the BorgWatch from under their noses and threatens to reveal it on TV. Catching Pythor should be a...