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

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

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.

As they wait in the monastery for the ninjas to return, Aspheera and Master Wu compete in a series of tests of strength and cunning.

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.

While the ninjas are tasked with prison labor in the desert, Nya and Dareth intercept the bus and help them escape.

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.

Harumi tells the story of how she went from the princess of Ninjago to the leader of the council of villains.

Federal Marshal Hounddog McBrag knocks on Master Wu's door. Beneath Ninjago City, the ninjas search for Lloyd — who tries to reason with his captor.

The ninjas are trapped in an old subway car in a collapsed underground tunnel. Master Wu and gang defend the Weapons of Spinjitzu.

As Lloyd awakens to terrible news from Harumi, the ninjas wait underground for Nya and the gang to rescue them. But will help arrive in time?

The council of villains resurrects a powerful old foe. Lloyd watches in horror — and later, makes a daring escape attempt.

Master Wu and the ninjas plot a heist at the police impound lot to take back the Bounty. In Primeval's Eye, Lloyd and Harumi traverse the jungle.

The Overlord realizes that an attempt to destroy the ninjas could unleash their powers and thinks of a new plan. Lloyd and Master Wu chase a lead.

At the home of Vinny of NGTV News, Lloyd and Master Wu discover a most unexpected houseguest and listen to his curious tale.

As the ninjas battle the seemingly invincible Vengestone army, Master Wu and Lloyd outline a possible path to victory.

Pixal makes some modifications to the ninjas' vehicles, and they head out into battle. But the Overlord has been holding back.

As the battle against the Crystal King rages on, Nya is trapped beneath the rubble. The Paperkids spring into action to defend Ninjago City.

Lloyd saves Hounddog McBrag, Master Wu learns of an ancient prophecy and Pixal and a damaged Zane run into convicts who escaped from Kryptarium Prison.

Skylor helps Cole and Kai out of a tough spot. After running into Jake at the arcade, they all follow Master Wu's clues to the Paperkids hideout.

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

The ninjas split up to try and send distress signals to their allies. Lloyd wonders if Garmadon is capable of "complassion" after all.

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.

Thanks to the sacrifices made by his loved ones and fellow ninjas, Lloyd taps into a deep, ancient power to vanquish the Overlord.