Season 4

2026 · 20 episodes

With the Ninja scattered and their powers weakened, a hidden enemy unleashes Elemental Monsters on the Merged Lands.

1The Whispering WoodAfter the portal gates separate the Ninja across the Merged Lands without their powers, they frantically search for a safe route back to Ninjago.
2The Lean of a TreeLloyd begins to grasp his true purpose, while Kai, Nya, and Jay desperately look for a way out when they discover they're trapped in a giant creature.
3Tonight We Hunt MonstersJay retraces his steps to try and unlock his memories. Frak asks his father and the Explorer's Club for help getting the team home.
4A Wonder of the Merged LandsSora, Frak, and Wyldfyre race to save Riyu from a deadly poisoning. Meanwhile, an old friend arrives to help Lloyd and the team battle Elemental Monsters.
5Seed and SoilSora and Frak hunt the Elemental Monster aboard the Explorer's Club ship, while Lloyd faces a crucial ritual at the Temple of the Green Ninja.
6Just Under the SurfaceHaving infiltrated The Administration, Jay, Kai, and Nya attempt a dangerous escape, while Lloyd grapples with the meaning behind his spiritual trial.
7The Grand InquisitionIn Umbrasilvis, Sora, Frak, and Wyldfyre form a plan to prove their innocence, while the Whispering Wood rapidly fades the longer Lloyd's ritual goes on.
8Dying to LiveCole overhears crucial details about the Loyalists' deadly plan, and Lloyd comes face-to-face with his greatest enemy in the Temple of the Green Ninja.
9The Heartbeat of All the RealmsImperium comes under attack from the Loyalists and the Elemental Monster army. Meanwhile, Lloyd must find a way to save the Whispering Wood.
10BirthrightAs Lloyd fights to retrieve the Weapon of Desolation, the Ninja unite and harness a new source of power in the battle to save Imperium.
11Monster in the MonasteryWhen the Weapon of Desolation proves too dangerous to keep in the Monastery, the team must split up to go on a mission to destroy it.
12The Mech Master 10,000A race through Ninjago City with unexpected stakes provides Sora and Arin an opportunity to strengthen their bond.
13In the PitsA detour inspired by Jay's lost memories leads the Ninja to a gladiator pit and a new mission.
14Ancient HistoryWhile the young Ninja struggle with their public perception, Frak investigates the possible return of a villain.
15A Frozen ScarCrossing into the Never Kingdoms to destroy the Weapon of Desolation, Lloyd's team meets old friends and encounters new dangers.
16100 Eyes to See Your SoulAs delegates arrive for the peace talks, the young Ninja handle a threat behind the scenes with a shocking assist.
17All Wizards Are LiarsThe young Ninja's chance to figure out the Loyalist plan hinges on Sora, meanwhile the Ninja's new ally is tempted by the Weapon of Desolation.
18The SummitTensions mount at the peace talks, and the new Ninja must foil a kidnapping plot without derailing negotiations.
19Desperately Seeking SoraThe young Ninja scramble to find their captured friend, while at the abyss of Eternal Night, the Ninja's ally faces the ultimate choice.
20Dangerous ConnectionsLoyalists disrupt the Merged Lands Summit, as the Weapon of Desolation resists its own destruction.

Episodes