- Not to be confused with the episode in which the event took place.
After Pythor unleashed the Great Devourer using the Four Silver Fangblades at the Lost City of Ouroboros, the Great Devourer awakened and swallowed Master Wu and Pythor and then chased and destroyed the Destiny's Bounty, causing the ninja to retreat.
Attack on Ed & Edna's Scrap N Junk
After the ninja lured the Great Devourer to Ed & Edna's Scrap N Junk while they were at a fare in Ninjago City and made the Ultra Sonic Raider out of the Tornado of Creation and used a recording of the Wu's flute to hurt the Great Devourer although the serpent escaped and damaged Zane.
Attack on Ninjago City
Later, when Nya flew her Samurai Mech into the mouth of the Great Devourer, The Ultra Dragon swooped in and began attacking the Great Devourer, but the serpent hit the Ultra Dragon to the ground and hurt him. While the ninja grieved, Lord Garmadon returned and told the ninja that the only way to destroy the Great Devourer was with the Golden Weapons which only Garmadon could wield, the ninja made the decision to give Garmadon the weapons while they made the Great Devourer stay in place.
After successfully making the Great Devourer stay in place, the ninja watched as Garmadon jumped down of the building and stabbed the Devourer with the Golden Weapons, killing the serpent.
- 23. "Island of Darkness" (pictured)
- 81. "Game of Masks" (flashback)
- 92. "Saving Faith" (flashback)
- 5. "Golden Hour"
- Garmadon Rulez! (mentioned)
- This event caused Harumi to begin plotting against the ninja.
- This event also caused the Stone Army to be reawakened from their deep slumber after thousands of years.
- Although Pythor was responsible for releasing the Great Devourer, the general population never found out, as they saw only the large serpent destroying the city and did not know what had happened in Ouroboros.
- Garmadon Rulez! (translated from "l'attaque du Grand Dévoreur")
War of the Oni and the Dragons · Battle of Nine Days · Stone Wars · Aspheera's rule over Ninjago · The Devourer's bite · Wu and Garmadon's journey · Long Winter · Serpentine War · Battle for All of Time · Battle between brothers · Search for the Golden Weapons · Take Back Ninjago · Attack of the Great Devourer · The Final Battle · Nindroid crisis · Second Serpentine War · Ghost invasion · Fall of Ninjago · Rise of Ninjago · Oni's invasion · Siege at the Monastery · Lloyd's Journey · Liberation of the Never-Realm · Attack by Unagami · Battle for Shintaro Mountain · Conflict on the Island of the Keepers · Great Flood · Candlelight vigil · Ninjago City vs. Ninja
Ninjago Talent · Ninjaball Run · Tournament of Elements (Thunderblade) · Street Race of Snake Jaguar · Puppy-petting competition · Terra Technica Dance-Off · Speedway Five-Billion · Ritual combat · Slug race · Royal manta races