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.

Arin and Sora develop new powers that just might help them confront the dragon hunters. Can the Green Ninja teach them how to harness their abilities?

On training day, Arin and Sora sneak out of the monastery to attend the Crossroads Carnival and uncover a villainous plot that tests their skills.

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?

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!

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.

In Imperium, Arin mentors a group of eager young crimefighters. Sora confronts a villain from her past. Lloyd frees an Elemental Master from prison.

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.

Sora hacks into the Imperium logs to find Riyu. Nya and Kai explore a mysterious passageway. Lloyd leads an epic battle against an army of Photacs.

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

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."

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.

Mr. Frohicky and Zane head to the Crossroads to locate a Wyconium coil. Elsewhere, Wyldfyre's pranks complicate her and Kai's Dragon Core quest.

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.

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.

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."

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.

While the Ninja try to figure out a way to bypass Imperium's energy barrier, Empress Beatrix tests a deadly weapon powered by stolen Dragon Cores.

To expose Empress Beatrix's mistreatment of dragons to the naïve citizens of Imperium, the Ninja will need help... from a man on the inside.

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

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 interrogate a shifty shopkeeper about a stolen mallet. Could the ancient tool be connected to the Cloud Kingdom archives — and Lloyd's visions?

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.

To meet the legendary teacher from Lloyd's visions, the Ninja must pass a series of tests. But will the ancient master live up to their expectations?

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

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.

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.

The Ninja head to the Wyldness, where they must confront Lord Ras — whether they're ready or not. Sorceress reveals her plan for keeping Bonzle safe.

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

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!

Lloyd attempts to decipher his visions, while Arin uncovers a mysterious theft that threatens the Sixteen Realms while searching for his parents.

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.

Arin runs into an old friend at the Tournament of the Sources, the Ninja explore the City of Temples, and Lloyd sees a strangely familiar face.

Master Wu sets out to discipline the Ninja — through dance! Arin reunites with Frak, who Sora doesn’t trust, and the fighting gets underway.

Nerves fray and tempers flare as the Ninja prepare to compete. Wyldfyre squares off against Cinder, leading to a serious setback for the gang.

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.

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.

Wyldfyre teams up with Arin to find out if Roby is behind the stolen horns. Later, at Bleckt’s office, they make a startling discovery.

Master Wu confirms Arin’s worst fears, and the location of the horns comes to light. Later, Wyldfyre drops a truth bomb at the tournament.

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.

Sora's pie-baking failure gives Zane an idea for how to find Arin, and the crew frees a village from a giant puppet's reign of terror on the way.

The search for Arin — who continues his training with Ras — leads the Ninja into a dangerous confrontation with a ferocious cyclops.

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.

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.

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

Arrakore the djinn transports Sora, Nya and Riyu to New Djinjago. Ras enlists Arin in his plan to reverse the Merge.

A mysterious mercenary attacks Ras and Arin in the World Forest. Zane and P.I.X.A.L. try a new approach in their search for the Prismatic Blades.

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.

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

Lloyd attracts the attention of a powerful adversary. The intervention of the mysterious mercenary tips the balance in an epic battle.

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

With Mysterium under attack, Ras, Arin and Sora rely on the Sorceress for help, while Jay leads the Ninja to the Administration on their way to Lee.

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.

The Underworld tests Arin and Sora's commitment to Ras, while Nya and Jay work together to expose Lee's secret.

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

The Ninja escape Lee and head for the source of the threat, while Ras plans his next move.

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

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

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

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