To save Cloud Kingdom, the Ninja must work together to send a terrifying tentacled beast back where it came from and close the Mergequake — and fast!

Lord Ras and his Wolf Masks arrive at the Cloud Kingdom seeking to obtain dark knowledge. The Ninja learn about the Gong of Shattering from a shopkeeper in the Crossroads. Euphrasia fights against the Wolf Clan but is defeated by Cinder, the Elemental Master of Smoke. Percival rescues Euphrasia after her injury and takes her to the Monastery of Spinjitzu. The Ninja arrive in the Cloud Kingdom and learn about the Forbidden Five and the Blood Moon. Ras uses his new powers against the Ninja. They temporarily retreat at the sight of the power of Shatterspin.