Plot Summary

When Nya’s powers are suddenly disrupted, the ninjas travel to the 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. The ninjas must find the prized amulets to stop him and keep their home safe. Will they triumph over the evil they face in the depths of the ocean?