Just as the rebuilding effort in Ninjago begins, the four ninjas realize Lord Garmadon has forged the ninjas' lost Golden Weapons into a mega-weapon.

When Garmadon accidentally brings to life the ruthless Captain Soto and his pirates, it's up to the ninjas to stop them from plundering Ninjago City.

When our heroes are invited back to Darkly's Boarding School, they discover it's a trap set up by Lord Garmadon and his evil replica ninjas.

When the ninjas learn Dareth's Mojo Dojo is to be destroyed, they enter the annual NinjaBall Run to win a cash prize that will help save the dojo.

When the ninjas prevent Garmadon from using his mega-weapon to bring to life a fossilized monster, they're turned into kids and need Lloyd's help.

When Garmadon travels back in time to undo the past and rid the future of ninjas, the ninjas follow him and try to stop him using the Golden Weapons.

The ninjas face off with an exhibit of a stone samurai warrior that the toxic venom from the Great Devourer has brought to life.

The ninjas try to flee from the Stone Army, which has been brought to life by the Devourer's toxic venom. Garmadon tries to seize control of the army.

The ninjas, Lloyd, Sensei Wu and Misako journey to the Dark Island to find a Temple of Light that can restore the ninjas' elemental powers.

After fighting off the Stone Army, the ninjas arrive at the Temple of Light and harness their pure elemental powers, concentrating them onto Lloyd.

The ninjas try to return Garmadon's Helmet of Darkness to its perch at the Celestial Clock to prevent the final battle between Lloyd and his father.

Garmadon uses his new super-weapon to turn Jamanakai Village evil, unsettling the balance and allowing the spirit of the Overlord to possess his body.

A great darkness has fallen upon Ninjago as Garmadon's super-weapon has turned it evil, but the ninjas discover light is more powerful than dark.

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.

The team learns about Jade Blades and other secrets of the Tournament of Champions. Karlof is eliminated from the competition.

The contests begin, and soon Cole is forced to battle with Jay. Zane regains his memory with help from P.I.X.A.L.

The remaining Elemental Masters compete in a roller skating competition. Cole, Karlof and other eliminations must work in Chen's noodle factory.

The ninjas form an alliance with the Elemental Masters after revealing Chen's plan. Cole and Zane break out of the noodle factory.

Lloyd and Garmadon learn of the great battle that once took place between Chen, the Anacondrai and the Elemental Masters for control of Ninjago.

It appears that all is lost when Chen drains the powers of the Elemental Masters and vanquishes Lloyd in battle to take control of his as well.

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

Master Chen uses a spell to turn himself and his troops into fierce Anacondrai, but the ninjas visit Ninjago City's jail to recruit an unusual ally.

The final confrontation between the ninjas and the Anacondrai unfolds, but a great sacrifice must be made if the heroes are to save the day.

Morro possesses Lloyd and uses him to infiltrate the tea shop and attack the other ninja, who have mysteriously lost their powers.

After learning that Wu's staff holds a clue to the First Spinjitu Master's tomb, the ninja go to Stiix to retrieve the stolen Airjitzu scrolls.

While Wu trains Nya in her new water powers, the ninja plot to steal the Airjitzu scrolls from Ronin but find that they must first fight Morro.

The ninja go to Sensei Yang's dangerous haunted temple to learn Airjitzu, and Nya quits her training but must use her powers to elude Morro's ghosts.

Using their new Airjitzu powers, the ninja race to climb a perilous mountain to find the Sword of Sanctuary before Morro can claim it.

After being betrayed in the Cloud Kingdom, the ninja battle Morro for the Sword of Sanctuary and learn he is ultimately after the Realm Crystal.

As the ninja close in on their final clue to the location of the First Spinjitzu Master's tomb, Ronin steals the Sword of Sanctuary to give to Morro.

The ninja journey to the First Spinjitzu Master's tomb to claim the powerful Realm Crystal, but they must navigate a series of traps -- and Morro.

As the ninja race to keep Morro from releasing the Preeminent, Morro uses the Realm Crystal to summon an army of ghosts from the Cursed Realm.

While the ninja try to protect Stiix, Lloyd encounters his father in the Cursed Realm, and Nya unlocks her true potential to take on the Preeminent.

The ninjas travel to attend the birthday party of Princess Vania, in the distant Kingdom of Shintaro, and bring along Master Wu.

The ninjas are welcomed to Shintaro, where Cole and Princess Vania investigate a mysterious visitor and explore a secret underground mine.

The ninjas attempt to rescue Cole, but the bickering of his fellow prisoners alerts the Skull Sorcerer, and soon the ninjas are prisoners too.

In order to escape the Skull Sorcerer's chain gang, the ninja must convince the Munce and Geckles to put aside their distrust and work together.

Separated from the others, Nya, Jay and Lloyd follow a Munce named Murt deep into the mountains, where they meet the Munce Queen.

Kai and Zane discover a party of Geckles, who suspect them of working with the Skull Sorcerer and bring them to their leader, Chancellor Gulch.

Cole must trust his instincts and make the right choices to find his way to the surface and alert King Vangelis of the dangerous Skull Sorcerer.

Princess Vania tries to catch the falling Master Wu and Cole. But with too much weight on her wings, they find themselves plunging into the mountain.

Having survived their fall into the mountain, Cole, Wu and Princess Vania befriend a motley group of survivors called the Lowly.

Cole leads the Lowly, Princess Vania and Master Wu in a series of fruitless efforts to find a way out of the inescapable Rock-Bottom.

Nya and Kai attempt to bring the Munce and Geckles together in an effort to defeat their mutual enemy, the Skull Sorcerer.

Pursued by a magma monster, Cole, Princess Vania, Wu & the Lowly arrive at a mysterious temple deep in Shintaro Mountain.

The ninjas, the Munce and the Geckles take refuge in the Geckle Strong-Cave after they're all forced to flee by the Grief-Bringer's arrival.

Cole, the Lowly, Princess Vania and Wu learn that the stone-mech is powered by Elemental Earth energy and use it to blast their way out of the mountain.

Cole and the Upply arrive at the Skull Sorcerer's Keep and find the ninjas locked into cages and the Geckles and Munce back at work in the chain gang.

As Cole and the Skull Sorcerer face off, the Geckles and Munce storm the Keep. Plundar frees the ninjas from their cages so they can join the battle.