After they escape Borg Industries with new gear, they must save Sensei Wu and defend against General Cryptor and the nindroids.
Unknown to them, a new adventure begins for the ninja warriors in a new technologically advanced city.
After the Overload has transformed himself and now NinjaGo, the ninja need Dareth's help and the Helmet of Shadows to reverse the changes. Lloyd, still injured from the first battle, must call on all his training to transform into the Ultimate Spinjitzu ninja.moreless
Failing to return the Helmet of Darkness to it's perch, the Dark Overlord is resurrected.
The ninja have one last hope to stop a future fight between Lloyd and Garmandon. They must steal Garmandon's helmet and return to it's resting spot before the clock strikes zero.
Gaining their elemental powers, the ninjas focus those powers onto Lloyd.
The ninja travel to the dark island to restore their powers.
Earthquakes rock Ninjago and the ninja assume it's Lloyd's father, but the real culprets unleash a more deadly threat. Lord Garmadon learns more about his link to the dark island.
The museum workers are trying to control seepage of the Great Devourer's venom into the building. The problem gets worse when the venom brings a giant stone statue to life.
Lord Garmadon travels into the past to stop the ninjas from coming together to eventually train the green ninja to defeat him.
Lloyd is depressed with his missing childhood and the other ninja are not sympathetic until a spell of Lord Garmadon turns them into children.
The Dojo is about to be destroyed and the ninja enter the Ninjaball Run to win the money necessary to save it.
Garmadon creates four dark ninjas to destroy the ninjas, while Lloyd learns lightening power from Jay.
Lord Garmadon brings the pirates of Destiny Bounty back to life, but they take over the new Black Bounty and attack Ninjago City. While the ninja defend the city, Lloyd unlocks his spinjitzu power.moreless
The ninja's new mission is to train Lloyd and they find a place to begin the training. Meanwhile Lord Garmadon enslaves the serpentine into turning the wreckage of the Destiny Bounty into his new ship.moreless
Part 2 of the season finale. With the Great Devourer awakened, the ninja soon discover that it's appetite must be curbed before it grows too large to stop. The return of various friends and foes are necessary to finally it.moreless
Part 1 of the season finale. As the Ninjas travel to destroy the fang blades, Pythor steals them back and Sensei can not dream the future anymore. The Great Devourer is released and Pythor realizes he can't control it.moreless
When the ninjas realize they can't stop Pythor getting to the fourth blade in time, they decide to steal back the other three. When they are captured they must depend on the green ninja and previous foes.moreless
Kai is the only ninja left to unlock his true potential and he is desperate to discover it. He also is having a hard time adjusting to Lord Garmadon staying with them. While rescuing the Lloyd, Kai finds his potential and discovers who will be the green ninja.moreless
When the snakes look for the second fang blade, they find out it is missing. Cole realizes that the dancing trophy that his father, a member of the Royal Blacksmiths, craves contains the blade. He must make his father proud and find his true potential to earn it, while Sensei and his brother return to Ninjago.moreless
While Sensei Wu is locating and enlisting his estranged brother to save Lloyd, Nya briefs the ninjas on an ancient snake skeleton which infects Jay slowly turning him into a snake warrior. The snake tribes find the first fang blade at an amusement park, where Jay discovers his potential.moreless
Zane discovers a secret about the falcon and himself when he follows the bird into a ice forest. The history of The Great Devourer is revealed and Pythor figures out how to locate the fang blades to unleash it.moreless
Pythor finds the hidden snake city, unites the snake tribes and captures Lloyd. The ninja try to find out the id of the samurai.
The ninja must find the last two tombs and race to beat Pythor before he joins the tribes together. A samurai saves the ninja, but Pythor steals the magical flute.
Zane has a dream of the green ninja. Lloyd releases Pythor, the last anaconda, and they attack Lloyd's old school. However, Pythor betrays him and the ninja capture Lloyd and convert him to an ally.moreless
The ninja fix up their new headquarters and Jay's parents visit, while Lloyd uses a map to locate the next snake tribe, the Fangfyres. After they return to their junkyard, Jay's parents are attacked and the ninjas learn a new ability of the golden weapons.moreless
Lloyd has the tribe construct a tree house and the ninja must destroy it. They discover Cole was brainwashed and Sensei Wu breaks the spell. The monastery is destroyed and Zane is blamed, while Scales takes over the snake tribe and kicks Lloyd out. Zane finds the ninja a new home.moreless
The ninja travel to stop Lord Garmadon but find his son instead and discover a scroll about the green ninja. Lloyd discovers the entrance to the first snake tomb and becomes their master.moreless
The ninja continue the search for the other three golden weapons avoiding the dragons which guard them. The final weapon, the sword of fire being the last and when Lord Garmadon tries to possess the sword, Sensei takes it to the underworld. The skeleton army are ordered to deliver the other weapons there also and the ninja fail to prevent them.moreless