Overview: The ninjas ambush a new villain named Miss Demeanor. Nya creates a water cyclone to stop her but loses control of it, threatening a nearby village.
Overview: Maya attempts to take charge of Nya's life to solve her problems. Zane and Pixal respond to a distress call at sea.
Overview: Nya, Jay, Zane, Pixal and Lloyd board a new submarine, the Hydro Bounty, and set off to find the source of the energy signal disrupting Nya's powers.
Overview: Nya and Maya use underwater suits to travel to an ancient temple after they realize its power source is the only way to get the Hydro Bounty running.
Overview: Nya and Maya attempt to get out of a tough predicament. Meanwhile, Jay risks his life while trying to restore power to the Hydro Bounty.
Overview: After Nya and Maya's rescue, the ninjas are escorted to Merlopia to face King Trimaar. However, a betrayal turns the ninjas into fugitives.
Overview: The ninjas survive the palace flooding — but are pursued by ripper sharks. Benthomaar comes to help and leads them to the hangar bay.
Overview: A flashback tells the tale of Benthomaar, revealing how King Trimaar finds him as a baby and raises Benthomaar as his own.
Overview: The ninjas return to the island of the Keepers and ask their leader to keep an amulet safe in Ninjago City — but they make a surprising discovery.
Overview: Kai, Ray, Cole, Wu, and Misako receive Nya's warning and rush to the Explorer's Club. Benthomaar encourages Nya to use her power in a surprising new way.
Overview: As Kalmaar and the ninjas wage a battle in Ninjago City, the storm amulet ends up in the possession of a determined paper girl.
Overview: Benthomaar tells Nya the tale of Nyad. Meanwhile, Master Wu, Kai, Cole, Ray, and Misako try to keep Kalmaar from taking off with the storm amulet.
Overview: The doomsday serpent, Wojira, rises from the sea. In Ninjago City, Glutinous emerges from the water with a dire warning.
Overview: The ninjas leap into action after Kalmaar and Wojira arrive in Ninjago City, bringing a tsunami that floods the entire city.
Overview: Overpowered by Wojira, the ninjas retreat to the NGTV building to regroup. Nya might make a decision that she may never be able to come back from.
Overview: Kalmaar's temper proves too much for Wojira to handle during battle while the ninjas try to help Nya fulfill her destiny.