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.

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.

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.

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.

Kalmaar's temper proves too much for Wojira to handle during battle while the ninjas try to help Nya fulfill her destiny.

A group calling themselves the "New Ninja" tries to stop a vengestone smuggling mission while the ninjas attempt to deal with Nya's disappearance.

On a ship out at sea, a sailor falls into the water during a perilous storm. To the crew's surprise, he's quickly placed back on board.

The ninjas' investigation into the vengestone smuggling mission leads them to an abandoned subway line — where they run into the New Ninja.

After splitting up with the others, Zane, Kai and Dareth make their way through the desert and catch a ride with a girl who ran away from home.

The ninjas reunite at Twitchy's and try to figure out which villains have already joined the Crystal King's council — and who will be next.

The ninjas try to track an undercover Lloyd as a crystal spider leads him under Ninjago City — and straight to the council of the Crystal King.

Kai attempts to define his relationship with Skylor... but his timing might be off. Dr. Borg tells Pixal that Zane is in a coma.

Master Wu explains the Dragon form — but the ninjas don't have much time to figure it out after the Overlord learns their whereabouts.

Lloyd and Garmadon meet the Overlord in an epic showdown. The ninjas get help from their allies to defeat the Vengestone army — but it may be too late.

The ninjas visit the mayor with an unusual appeal: to request the release of one of their worst enemies from Kryptarium Prison!

In a strange twist of fate, the ninjas successfully break Aspheera out of prison. But to save Nya, they'll also need to steal back Aspheera's staff.

After freeing Aspheera to save Nya, the ninjas land up in Kryptarium Prison, where they are surrounded by their old enemies.

Crystal spiders continue to recruit villains to join the council of the mysterious Crystal King. Nya is reminded of her days as Samurai X.

After he loses the Mask of Deception to a new villain, Lloyd reunites the scattered ninjas.

The Nindroids use the Golden Weapons to transform the Overlord into the Golden Master. In the ruins of Ninjago, the ninjas prepare their final stand.

The ninjas seek the Sons of Garmadon by interrogating a captured gang member and going undercover at a karaoke bar.

A great darkness has fallen upon Ninjago as Garmadon's super-weapon has turned it evil, but the ninjas discover light is more powerful than dark.

Separated by the crash, the ninjas try to get to the Oni mask before the Sons of Garmadon.

A flashback reveals the truth about the Quiet One's identity as Harumi and Lloyd venture deeper into the Oni Temple seeking the third mask.

The ninjas celebrate at Laughy's until they learn Garmadon has broken Harumi out of prison.