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.

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.

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

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

The ninjas search for a quest to reignite their Spinjitzu training; unfortunately, Ninjago City is enjoying a period of rare tranquility.

Back in Ninjago City, three criminals learn that the ninjas are away and break out of Kryptarium Prison after lights out.

To repair the Land-Bounty, the ninjas must retrieve a critical engine component that has been swallowed by a giant scarab beetle.

Gayle Gossip and her cameraperson deliver a live newscast of the Serpentine attack on Ninjago City

Having learned the identity of the "Treacherous One," the ninjas find themselves under siege at the Monastery.

Back in Ninjago City, Wu and Pixal attempt to locate the Never-Realm and accidentally unleash a dreaded creature from the Departed Realm.

When the ninjas connect Jay's disappearance to Prime Empire, they head to Dyer Island to seek answers from the game's designer, the elusive Milton Dyer.

As the ninjas prepare for the brutal Speedway Five-Billion race, Lloyd meets a race driver named Seven — who may hold the key to victory.

The ninjas take a road trip through the Desert of Doom, a region supposedly inhabited by a giant scarab beetle.