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Season guide

LEGO Nexo Knights: Season 3

10 episodes Premiered Feb 4, 2017 Updated Sep 17, 2026
Previously on LEGO Nexo Knights

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • Picks up essential narrative continuity directly following the events of LEGO Nexo Knights Season 2.
  • Character alliances, factions, and personal loyalties undergo significant shifts under escalating stakes.
  • Addresses unresolved cliffhangers and thematic mysteries introduced during previous seasons.
  • Establishes the primary seasonal conflict that drives serialized character arcs toward the finale.
Season 3 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 3 Progress Shield

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Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

30%
70%
Mytharc (3): Crucial lore & season climaxes
Core (7): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

The Cloud

Feb 4, 2017 · 22 min

The kingdom is threatened by an army of Lava Monsters, and the inexperienced NEXO Knights must come to the rescue.

S3·E2 Core

A Little Rusty

Feb 11, 2017 · 22 min

The Cloud of Monstrox and Jestro unlock a mysterious forbidden power; Merlok 2.0 and the Nexo Knights try to make the new Combo Nexo Powers work.

S3·E3 Core

Mount Thunderstrox

Feb 18, 2017 · 22 min

Jestro and the Cloud of Monstrox encounter the sculptor who helps unleash a horde of fierce garden gnomes on Knighton.

S3·E4 Core

Rotten Luck

Feb 25, 2017 · 22 min

Jestro and the Cloud of Monstrox unleashes the Forbidden Power Ravaging Rot on Knighton, turning everything into green gooey rot, but Robin has an awesome new invention that could

S3·E5 Core

Storm Over Rock Wood

Mar 4, 2017 · 22 min

The Nexo Knights have their powerful shields stolen by Robot Hoodlum and his Merry Mechs; something is coming to life in the petrified forest and it doesn't like knights.

S3·E6 Core

Miner Setback

Mar 11, 2017 · 22 min

Villagers are being enslaved to dig out three ancient warriors whom the Cloud of Monstrox wants to bring back to life. Can the Nexo Knights make their Combo Nexo Powers work inside

S3·E7 Core

Knight at the Museum

Mar 18, 2017 · 22 min

At K.O.M.A. (Knightonia Official Museum of Art) Monstrox learns that a Forbidden Power tablet is hidden and he will do anything to get it; especially if King Halbert happens to vis

S3·E8 Core

Hot Rock Massage

Mar 25, 2017 · 22 min

The old Lava Monsters are back and a Forbidden Power is in the middle of their new village of Burningham! But whose side are the Lava Monsters on?

S3·E9 Mytharc

Rock Bottom

Apr 8, 2017 · 22 min

The three Harpies have kidnapped Macy's mother Queen Halbert, and the Nexo Knights use everything in their power to rescue her.

S3·E10 Mytharc

In Charge

Apr 8, 2017 · 22 min

The Cloud of Monstrox grows more powerful with every Forbidden Power Jestro inserts; the capitol of Knighton is under attack; the Fortrex is damaged and Clay is turned to stone.