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.

Lloyd unlocks a second tribe, the Fangpyres, to help him regain control. The ninjas take action when the Fangpyres attack Jay's family's village.

Lloyd moves in and tries to help out but just gets in the way. Pythor awakens the Venomari and the Constrictai, and an all-out snake war breaks out.

Pythor declares himself the destined leader who'll reawaken The Great Devourer, an ancient beast that can't be killed and will consume all of Ninjago.

The ninjas go undercover as a dance troupe and enter a talent contest in their quest to win the Blade Cup, where one of the fang blades is hidden.

After discovering that Zane may still be alive, the ninjas learn that they must compete in a Tournament of Champions if they wish to see him again.

Chen and his army invade Ninjago City, but the masters have escaped the noodle factory and follow close behind. Garmadon narrowly escapes banishment.

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.

Back in training mode with the looming threat of Lloyd and the Hypnobrai, Zane wanders after a Falcon and lands himself in a heap of trouble.