In the Spectral Lands, Ras sends Arin to retrieve a healing elixir from the Well of the Lost. Kai hatches an ingenious plan to find Jay.

In the City of Temples, the Ninja find guidance from an unlikely source, while Cole, Kai and Frak battle the Hollow Ones in Imperium.

Ras leads Arin and Sora into unexpected chaos in Mysterium while the Ninja recruit Jay for a special mission.

Ninja never quit! Nya, Kai and Zane give the battle against Imperium new hope while Lloyd uncovers a mystery hidden deep below the city.

In the Land of Lost Things, Nya runs into an old pal while Sora looks for an alternate power source to ward off a junkyard monster called "The Hoarder."

ThunderFang gathers the last of his power in the Spectral Lands and only the Ninja can stop him - but at what cost?

When the Bounty airship returns with no captain, Arin, Sora and Lloyd use clues to figure out what happened to Kai. Is it a trap... or something worse?

Kai makes a discovery that allows him to speak with his sister. Arin visits the Temple City museum where he has a breakthrough about the missing horns.

When the Ninja meet their match in a Photac — an indestructible techno-beast — Sora believes that a mission to Imperium is the only way to destroy it.

Lloyd and Arin arrive in the Administration, where they learn the Dragon Core will be demolished if they don't act fast — and file the correct paperwork.

The Ninja embark on their separate journeys to awaken the Arc Dragon of Focus but deal with unexpected - and annoying - interruptions.

To save Cloud Kingdom, the Ninja must work together to send a terrifying tentacled beast back where it came from and close the Mergequake — and fast!

The reunited Ninja learn of the Forbidden Five's dangerous quest to find the Prismatic Blades. Meanwhile, Ras leads Arin across a desert.

When the Ninja split up to find the three Dragon Cores, Arin and Lloyd take the airship but soon need help from a village of peaceful algae farmers.

The Ninja reach the Caves of Bells while Lloyd and Arin fight their way through the Spectral Lands to summon the Arc Dragon.

The Ninja begin their training to defeat the Forbidden Five, but Wyldfyre feels left behind. Bonzle reveals an unexpected connection.

To bust the imprisoned dragons out of Imperium, the Ninja will need to work hard, think fast and find one big exit! Unless the Photacs get there first.

Empress Beatrix's rampage pushes the MergeQuakes dangerously close to the tipping point, unless the Ninja can work together — and save the world.

Sorceress searches the storehouse for a spell to rescue Bonzle while Arin intercepts a special package. Then, the remaining Ninja infiltrate the ritual.

Bonzle and her team set out to search for a certain sorceress, but first they'll need a map. Meanwhile, Arin struggles with his Spinjitzu training.

Lloyd, Jay, Nya and Wyldfyre go undercover in the strange Land of Lee, while Riyu's training under Rontu is off to a bumpy start.

A metal gate. A teacher. And a direction...? Lloyd experiences a vision from the Source Dragons that sends the Ninja on a righteous but unclear quest.

With the Blood Moon looming, Bonzle asks her eccentric creator for help while the Ninja have one last chance to master the Rising Dragon technique.

After a mysterious event known as "The Merge" shuffles the universe, an aspiring Ninja teams with a smart techie to navigate a new and unfamiliar world.

Zane's run-in with looters at a strange monastery leads to a reunion with an old friend, but he also crosses paths with one of the Forbidden Five.

Nya's Seeker Stones lead her and Sora to something they weren't searching for. As Zane's Assistant Keeper, Mr. Frohicky can't do anything right.

As the Ninja fight to win the Temple Race, Ras makes a shocking claim to Arin — putting him at odds with his friends — just as the tournament heats up.

Arin and Sora investigate a mysterious break-in at the junkyard while a sleep-deprived Lloyd suffers from stress dreams about warriors wearing masks.

The Ninja get a big surprise when they arrive at the Tournament of the Sources, while Kai and Bonzle contend with the Forbidden Five in the Nether-Space.

Cole, Frak and Kai unearth a shocking discovery outside the Land of Lost Things, while the Ninja reunite to liberate Lee.

Sora and Nya search for the Dragon Core with a magical compass. Arin and Lloyd get put to the test in Mother Garden. Wyldfyre and Kai play keep-away.

Heavily outnumbered, the Ninja race to stop the Forbidden Five from freeing Thunderfang. Wyldfyre desperately tries to cure one of the crew.

The Wolf Mask army battles the Elemental Masters as the Ninja converge on the Monastery of Gates to stop Nokt from freeing the Forbidden Five.

The Ninja catch up with Arin in the World Forest and try to convince him to leave Ras, and the reason for Arin and Sora's deep bond is revealed.

With the sacrifices, spell and Blood Moon in his control, Lord Ras has everything he needs to unleash the Forbidden Five — unless the Ninja can act fast!

To stop the MergeQuakes from getting worse, the Ninja travel to the Temple of the Dragon Cores to learn more about something called "The Coalescence."