LEGO Ninjago

LEGO Ninjago (formerly subtitled Masters of Spinjitzu) is a CGI comedy-action family television show that aired on Cartoon Network in the United States and Canada, Nickelodeon in Denmark and Greece, and Disney XD in Latin America.

The pilot episodes were released on January 14, 2011, and the first two episodes of the first season were released on December 2, 2011.

Premise
The show is set primarily on the fictional Ninjago Island, a world which draws inspiration from East-Asian legends and culture, while taking place in a modern setting.

Long before the events of the series, the First Spinjitzu Master used the power of the Golden Weapons to create the world of Ninjago. Trained in the legendary art of Spinjitzu by the wise Master Wu, a group of young Ninja (Kai, Jay, Cole, and Zane, and eventually Lloyd and Nya) with mastery over the Elements fight to defend their land against those who wish to conquer it. Each season focuses on a different one or more of the Ninja and features a different group of varied antagonists.

Prophecy of the Green Ninja Arc (2011-2013)
The beginning of the Ninja's story and the introduction of the legendary Green Ninja of legend. In this phase the Ninja face off against the likes of Lord Garmadon in order to fulfill the Prophecy of the Green Ninja and defeat the Dark Lord once and for all.

'Season 0: Masters of Spinjitzu' (2011)''
Sensei Wu must assemble four Ninja to wield the four Golden Weapons of Spinjitzu before his evil brother, Garmadon, the King of the Underworld, takes them first. Wu finds Kai, Cole, Jay, and Zane, and the four of them embark on a quest to find them all, fighting off Garmadon's Skulkin army in the process of learning the martial art of Spinjitzu.
 * Main antagonist: Samukai
 * Final boss: Lord Garmadon
 * Villainous faction: Skulkin
 * Mascot Ninja: Kai
 * Ninja Suits: Trainee
 * Episodes: 2
 * McGuffin: Golden Weapons of Spinjitzu
 * Released: January 2011
 * Pilot: Way of the Ninja
 * Finale: King of Shadows

Season 1: Rise of the Snakes' (2012)'
Since Lord Garmadon’s disappearance into the Realm of Madness, Ninjago has been at peace, but the young ninja have grown lazy. While Garmadon lurks in the shadows, waiting for the right moment to strike, the ninja meet his young son, Lloyd, who carelessly unleashes a fearsome new enemy upon Ninjago – the ancient tribes of the Serpentine. The leader of the Serpentine, Pythor, hatches an evil plan to bring back the legendary, all-consuming snake, the Great Devourer.
 * Main antagonist: Pythor
 * Final boss: The Great Devourer
 * Villainous faction: Serpentine
 * Mascot Ninja: Lloyd
 * Ninja Suits: ZX
 * Episodes: 13
 * Whip: The Weekend Whip
 * McGuffin: Four Silver Fangblades
 * Released: December 2011
 * Pilot: Rise of the Snakes
 * Finale: Day of the Great Devourer

'Season 2: Legacy of the Green Ninja' (2013)''
Lord Garmadon has disappeared with all Four Golden Weapons and now he controls the Serpentine. Meanwhile, the Ninja intensify their training of young Lloyd so he will be strong enough to defeat Lord Garmadon in the final battle. To gain evil power, Lord Garmadon goes to the Golden Peaks to convert all Four Golden Weapons into the weapon of creation – the Mega Weapon. After discovering the legend of the ancient Overlord, the Ninja embark on a quest to the Dark Island to defeat the Overlord and the Stone Army so Lloyd does not have to face his father.
 * Main antagonist: Lord Garmadon
 * Final boss: The Overlord
 * Villainous faction: Stone Army
 * Mascot Ninja: Golden Lloyd
 * Ninja Suits: Kimono
 * Episodes: 13
 * Whip: The Weekend Whip
 * Titular Weapon: Elemental Blades
 * Released: July 2012
 * Pilot: Darkness Shall Rise
 * Finale: Rise of the Spinjitzu Master

Trials of the Ninja Arc (2014-2017)
Each of the six Ninja must go through trials in their own individual season. Zane learns what it's like to be human, Kai learns that power isn't everything, Lloyd gets over the loss of his father, Jay learns patience is a virtue, Cole learns to be "seen," and Nya and Kai each learn to embrace the past and the future. Each focus Ninja also gets a special edition suit, not like the others.

'Season 3: Rebooted' (2014)''
Victory in the final battle between the Golden Ninja and the Overlord has ushered in a new era of peace and begun a technological renaissance. Ninjago City has been rebuilt into a futuristic wonder and is now completely interconnected. Welcome to New Ninjago City. The ninja have found there is very little need for their heroics and have become teachers at Wu’s Academy. But peace is an illusion…
 * Main antagonist: The Digital Overlord
 * Final boss: The Golden Master
 * Villainous faction: Nindroids
 * Focus Ninja: Zane
 * Ninja Suits: Techno
 * Special Suit: Damaged Zane
 * Episodes: 8
 * Whip: Techno Whip
 * Titular Weapon: Techno Blades
 * Released: January 2014
 * Pilot: The Surge
 * Finale: The Titanium Ninja

'Season 4: Tournament of Elements' (2015)''
After the loss of Zane, the Ninja are split up. When hope of finding him at a Master Chen's Tournament of Elements rises up, they find that there are more Elemental Masters like them, and the Tournament is not as innocent as it seems.
 * Main antagonist: Master Chen
 * Final boss: Chen'rai
 * Villainous faction: Anacondrai Cultists
 * Focus Ninja: Kai
 * Ninja Suits: Tournament, Zukin
 * Special Suit: Powered up Kai
 * Episodes: 10
 * Whip: Tournament Whip
 * Titular Weapon: Jade Blades
 * Released: February 2015
 * Pilot: The Invitation
 * Finale: The Corridor of Elders

'Season 5: Possession' (2015)''
A grieving Lloyd is possessed by the ghost of Morro – the Master of Wind and Wu’s first student. In Lloyd’s body, Morro renders the other Ninja powerless before stealing Wu’s staff. It contains three hidden symbols, the path to finding the Tomb of First Spinjitzu Master. Wu knows that if Morro finds the tomb, he will claim the Realm Crystal. This relic has the power to open the fabric between realms, enabling the powerful Preeminent to enter the Ninjago world.
 * Main antagonist: Morro
 * Final boss: The Preeminent
 * Villainous faction: Ghosts
 * Focus Ninja: Lloyd
 * Ninja Suits: Deepstone
 * Special Suit: Possessed Lloyd
 * Episodes: 10
 * Whip: Ghost Whip
 * Titular Weapon: Aeroblades
 * Released: June 2015
 * Pilot: Winds of Change
 * Finale: Curseworld Part II

'Season 6: Skybound' (2016)''
With the defeat of Morro’s ghost invasion, the Ninja have now become huge media celebrities. But dark forces once more threaten Ninjago as the Teapot of Tyrahn is rediscovered by the ghost of Clouse, Master Chen’s former right-hand man. He allows Nadakhan, an evil Djinn and captain of the infamous Misfortune’s Keep, to escape the teapot. After reassembling his pirate crew, Nadakhan returns to his home realm of Djinjago, to find it collapsing. This destruction, caused by the ninja defeating the Preeminent, leads Nadakhan to vow revenge. He refits his ship so it can fly and prepares to attack. Now they are Sky Pirates.
 * Main antagonist: Nadakhan
 * Final boss: King Nadakhan
 * Villainous faction: Sky Pirates
 * Focus Ninja: Jay
 * Ninja Suits: Airjitzu Robes
 * Special Suit: Pirate Jay
 * Episodes: 10
 * Whip: Pirate Whip
 * Titular Weapon: Djinn Blade
 * Released: March 2016
 * Pilot: Infamous
 * Finale: The Way Back

Day of the Departed(special) (2016)
When Cole returns to Yang's haunted temple to seek revenge on the former Airjitzu Master who turned him into a ghost, he accidentally uses a powerful Dark Magic blade that unleashes the spectral forms of Ninjago's greatest villains and traps himself in the temple! While Cole battles for his freedom, the Ninja must return their ghostly foes to the Departed Realm before they gain the power to remain in Ninjago forever!
 * Main antagonist: Sensei Yang
 * Villainous faction: Past villain's ghosts, Yang's students
 * Focus Ninja: Cole
 * Ninja Suits: Honor Robes
 * Special Suit: Cole RX
 * Whip: Rift Whip
 * Titular Weapon: Departed Blades
 * Released: October 2016

'Season 7: The Hands of Time' (2017)''
Shortly after the Day of the Departed, Master Wu awaits his old enemy Acronix to complete a battle they began 40 years ago. But Wu never should have faced such a powerful foe alone. Acronix hits Wu with the Time Punch, which causes him to start rapidly aging! Acronix escapes and reunites with his twin brother Krux, who has been living the past 40 years in disguise as the lovable Dr. Sander Saunders. During this time, Krux has been breeding a new slithering enemy: the Vermillion Warriors.
 * Main antagonists: The Time Twins
 * Final boss: The Iron Doom
 * Villainous faction: Vermillion Army
 * Focus Ninja: Kai and Nya
 * Ninja Suits: Fusion Armor
 * Special Suits: Powered up Kai + Nya
 * Episodes: 10
 * Whip: Temporal Whip
 * McGuffin: Time Blades
 * Released: May 2017
 * Pilot: The Hands of Time
 * Finale: Lost in Time

Oni Arc (2018-2019)
The Ninja are at their peak, and after the loss of Wu, they train in order to face their deadliest foe yet: the Oni. The Bringers of Doom are hinted at since the beginning of Season 8, until it leads to the final battle in Season 10. This phase can also be seen as a focus for Lloyd as a whole, as he plays a big part in all 3 seasons.

'Season 8: Sons of Garmadon' (2018)''
A year after the loss of Master Wu, the Ninja, led by the newly dubbed Master Lloyd, must protect the Royal Family and prevent a group known as the Sons of Garmadon from successfully reviving Lord Garmadon at the Temple of Resurrection using the Oni Masks.
 * Main antagonist: Harumi
 * Final boss: The Colossus
 * Villainous faction: The Sons of Garmadon
 * Mascot character: Lloyd
 * Ninja Suits: Spinjitzu Robes
 * Episodes: 10
 * McGuffin: Oni Masks
 * Released: April 2018
 * Pilot: The Mask of Deception
 * Finale: Big Trouble, Little Ninjago

'Season 9: Hunted' (2018)''
While Lloyd and Nya resist Emperor Garmadon's oppressive hold on Ninjago City, Young Wu and the rest of the Ninja are stranded in a barbaric realm where fierce dragons are being hunted down by Iron Baron and his gang of Dragon Hunters. Lloyd must endure in Ninjago City, the others need to find the fabled Dragon Armor if they ever hope to get back home to stop Emperor Garmadon once and for all.
 * Main antagonist: Iron Baron
 * Final boss: Emperor Garmadon
 * Villainous faction: The Dragon Hunters
 * Mascot character: Young Wu
 * Ninja Suits: Resistance, Hunted
 * Episodes: 10
 * McGuffin: Golden Dragon Armor
 * Released: August 2018
 * Pilot: Firstbourne
 * Finale: Green Destiny

'Season 10: March of the Oni' (2019)''
After years of training in the ancient arts to become Masters of Spinjitzu, after growing as both warriors and family, after protecting the realm from enemy after enemy, the Ninja pitch a heroic last-ditch effort against the Bringers of Doom. They are fighting for the Ninjago world and its rich history, and they are fighting for their legacy – and they will give it their everything. Why? Because they are Powerful. They are Family. They are Ninja.
 * Main antagonist: Omega
 * Final boss: Oni Horde
 * Villainous faction: Oni
 * Mascot character: Garmadon
 * Ninja Suits: Legacy Robes
 * Episodes: 4
 * Released: April 2019
 * Pilot: The Darkness Comes
 * Finale: Endings

Book of Elements Arc (2019- )
After facing the greatest evil the world will ever see, the Ninja have some down time. Each season in this phase "retells" the original seasons of the past through the enemy variety. This phase also gives the show "the reboot treatment," reducing the plot and humor for younger audiences, changing animation studios, shortening episodes to 11 minutes, and dropping the "Masters of Spinjitzu" subtitle. Additionally, each season incorporates a certain Elemental theme dubbed "chapters." The Book of Elements refers to how each section dedicated to one Ninja's Elemental Power is referred to as a chapter.

'Season 11: Secrets of the Forbidden Spinjitzu' (2019)''
The Fire Chapter: The Scrolls of Forbidden Spinjitzu have been kept a secret for a thousand years. With good reason. The evil Serpentine sorceress, Aspheera, was banished along with the Scrolls – but now she is back, hungry for revenge, and ready to get her fangs on the Scrolls once more and reclaim her powers. The ninja’s powers, friendships, beliefs and loyalties will be put to the test like never before.

The Ice Chapter: Zane’s been captured by the evil Ice Emperor. The Ninja have mounted a desperate rescue mission – but if they want to see their friend again, they’ll have to battle hordes of Blizzard Samurai as they make their way through the Never-Realm, from where no Ninja has ever returned. 
 * Main antagonist: Aspheera
 * Final boss: The Ice Emperor
 * Villainous factions: Pyro Vipers + Blizzard Samurai
 * Villain correspondences: Serpentine + Stone Samurai Warriors
 * Mascot character: Kai
 * Ninja Suits: Forbidden Spinjitzu Robes
 * Episodes: 30
 * Whip: Wicked Whip
 * Chapters: Fire & Ice
 * McGuffin: Scrolls of Forbidden Spinjitzu
 * Released: June 2019
 * Pilot: Wasted True Potential
 * Finale: Awakenings

'Season 12: Prime Empire' (2020)''
In the hyped video game, Prime Empire, you can be whoever you want to be. Jay, ever the avid gamer, can’t wait to start playing. But when hundreds of players, and Jay, suddenly start vanishing without a trace, the ninja need to get inside the game and find out who is playing Unagami. Now they must compete in adventures and difficult game worlds, win all three Key-tanas– and only then can they face the evil Unagami. Can they reach the final level and beat the game?
 * Main antagonist: Unagami
 * Final boss: Empire Dragon
 * Villainous faction: Red Visors
 * Villain correspondence: Nindroids
 * Focus character: Jay
 * Ninja Suits: Digi
 * Episodes: 16
 * Whip: Arcadian Whip
 * Chapter: Lightning
 * McGuffin: Key-Tanas
 * Released: March 2020
 * Pilot: Would You Like to Enter Prime Empire?
 * Finale: Game Over

'Season 13: Master of the Mountain'(2020)''
The Ninja are invited to the beautiful Shintaro Kingdom to celebrate the young Princess Vania’s birthday. At first glance, the Ivory City looks like a pristine place, but the Ninja soon uncover a dark, obscure, long-forgotten underworld: The Dungeons of Shintaro. Once inside, they must fight their way to freedom through a maze of tunnels paved with dangers and strange creatures ruled by the merciless Skull Sorcerer. The Ninja must choose their path wisely…
 * Main antagonist: King Vangelis
 * Final boss: Skull Sorcerer and the Skull of Hazza D'ur
 * Villainous faction: Awakened Warriors
 * Villain correspondence: Ghosts
 * Focus character: Cole
 * Ninja Suits: Hero
 * Episodes: 16
 * Whip: Shintaro Dungeon Whip
 * Chapter: Earth
 * McGuffin: Blades of Deliverance
 * Released: July 2020
 * Pilot: Shintaro
 * Finale: The Son of Lilly

Season 14: TBA (2021)
Not yet confirmed season but leaks show that Lloyd will be the focus. Set names indicate we're gonna be in a jungle, and the villains are these purple tiki guys.

Things that are italicized aren't confirmed yet.
 * Main antagonist: The Keeper
 * Final boss: TBA
 * Villainous faction: Tiki Guys
 * Villain correspondence: Anacondrai Cultists
 * Mascot character: Lloyd
 * Ninja Suits: Rogue
 * Episodes: TBA
 * Whip: TBA
 * Chapter: Energy
 * McGuffin: TBA
 * Released: 2021
 * Pilot: Uncharted
 * Finale: TBA