Nya's powers suddenly become disrupted, and the ninjas travel to the bottom of the Endless Sea for answers. They find a dangerous underwater world ruled by Prince Kalmaar, who wants to destroy Ninjago City by waking the all-powerful sea serpent Wojira. But how will the ninja fight while out of their element? Misty's powers are still unstable and unknown to the ninja the political leaders of Ninjago are in the midst of deciding their next course of action to take with the infamously known Master of Crystal.