The Final Battle, also referred to as the Ultimate Battle, is an event that happened some time after the attack of the Great Devourer; as its name says, it was prophesied to be the final battle between good and evil.
The final battle started from Stone Wars. However, it was never completed until Lloyd defeated the Overlord. Although, the Celestial Clock, a clock that counted down the hours until the end of the Final Battle, had stopped ticking, until Garmadon took the Helmet of Shadows from the Celestial Clock's perch.
After Garmadon read Captain Soto's journal and discovered the existence of the Dark Island which had resources that could help Garmadon take over Ninjago, he attempted to take a Rattlecopter to find it, but after hours of looking, Skales knocked Garmadon off the copter and into the water. Garmadon woke up on the shores of the Dark Island where he was greeted by the spirit of the Overlord, who tested him by making him climb a mountain and activate the Dark Island.
After this, the Overlord made Garmadon take the Helmet of Shadows so he could control the Stone Army. During this time, the Serpentine led by Skales had been trapped in an underground tomb while trying to defeat the Stone Army who had awakened from a deep slumber. When the Stone Army began attacking Ninjago City, the ninja brought all the people to the NGTV news building's rooftop so that Nya could land the Bounty and get everyone to safety. Afterwards, the ninja departed to the Dark Island after Misako told them about the Temple of Light which could give the four ninja Elemental Powers to defeat the Stone Army. After arriving on the Dark Island and traveling to the Temple of Light, Lloyd gained the power of the Golden Dragon and the ninja are informed by Misako that by returning the Helmet of Shadows to its perch, they could stop the Celestial Clock, which would stop The Final Battle. After retrieving the helmet and placing it on its perch the ninja, they find that it is too late and the Stone Army take Nya and use Dark Matter to turn her evil. After Garmatron is created he starts using it to fire on Jamanakai Village and Ignacia, which upset the balance and allowing the Overlord to cross into the world of Ninjago in Garmadon's body.
Battle in Ninjago City
After the Overlord injured Lloyd during a battle, he and his followers went through a vortex to Ninjago City and left the ninja behind. While Dr. Julien fixed Lloyd's leg they found the Golden Mech, the Ultra Dragon returned to pick up the rest of the ninja. The ninja return to Ninjago City where the Overlord has turned everything into Darkness and one by one as the ninja climb the staircase. However, the Overlord corrupted them except for Kai and Lloyd. Lloyd faces the Overlord and unlocks his Golden Power, allowing him to summon the Golden Dragon and defeat the Overlord, ending The Final Battle.
- 1. "Curiosity" (painting)
- Some time after this battle Dr. Julien passed away, but his work inspired Cyrus Borg to create New Ninjago City.
- After this battle, all the ninja (with the exception of Lloyd) became teachers at Wu's Academy.
- In Rebooted (specifically, "The Surge", "The Art of the Silent Fist", and "Enter the Digiverse"), this battle is only referred to "the Ultimate Battle", never "the Final Battle." This may be because the return of the series meant the battle wasn't, in fact, the final battle, so it was renamed "the Ultimate Battle" as a broader term.