archytele The Vault
Season guide

LEGO Nexo Knights: Season 4

10 episodes Premiered Aug 21, 2017 Updated Sep 17, 2026
Previously on LEGO Nexo Knights

Season 4 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 3.
  • 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 4 Episodes

Episode Guide

🛡️ SPOILER SHIELD

Season 4 Progress Shield

Future titles & synopses blurred. Tap "Reveal" on any card to peek.
Binge Efficiency Engine

Season 4: 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
S4·E1 Mytharc

Weekend at Halberts

Aug 21, 2017 · 22 min

Party time in Knighton! The mood is down so the King decides to throw a party. In the meantime Jestro attacks the Fortrex, but he is confronted with the new Nexo Power "The Wedgie

S4·E2 Core

The Gray Knight

Aug 22, 2017 · 22 min

Using his Stone to Life magic the Cloud of Monstrox turns Clay into a living, fighting, breathing stone fighting knight. But will Clay use his forces to fight for good or for evil?

S4·E3 Core

The Good, the Bad and the Tightwad

Aug 23, 2017 · 22 min

Clay wakes up in the poor town of Nothing Hill which literally has nothing. Will Clay remember who he is and what he is fighting for? His friends try to help him, but Jorah Tightwa

S4·E4 Core

In His Majesty’s Secret Service

Aug 24, 2017 · 22 min

The Nexo Knights decide to use Clay to infiltrate the enemy camp but first Clay needs to learn how to be a good spy. Agent Shield, Jack Shield helps them with that.

S4·E5 Core

Stranger in the Halps

Aug 25, 2017 · 22 min

Jestro and the Cloud of Monstrox builds a new stone army from giant building blocks to crush Knighton. The Nexo Knights try to convince Rockowski, a demolition expert, to help them

S4·E6 Core

Krakenskull

Aug 28, 2017 · 22 min

Jorah Tightwad is digging for gold but finds the ancient Lord Krakenskull buried with his army. This stone army is exactly what the Cloud of Monstrox needs.

S4·E7 Core

Heart of Stone

Aug 29, 2017 · 22 min

Clay Moorington the Nexo Knight has had enough of Monstrox, Jestro and their Forbidden Powers and decides to take the fight to them. But the Cloud of Monstrox is getting closer and

S4·E8 Core

Between a Rock and a Hard Place

Aug 30, 2017 · 22 min

Things are getting dire in Knighton. Jestro and the Cloud of Monstrox only need the Forbidden Power of Awesome Annihilation in order to reveal what's hidden in Mount Thunderstrox.

S4·E9 Mytharc

March of the Colossus

Aug 31, 2017 · 22 min

The giant Stone Colossus is marching on Knighton. Ruina the witch tries to get to Clay, but the other Nexo Knights need him in their final defense of the realm. Which side will he

S4·E10 Mytharc

The Fall

Sep 1, 2017 · 22 min

The Cloud of Monstrox is inside of The Stone Colossus and it now stands in front of Knighton. The students of the Knights Academy are mobilized, the King and Queen are on the defen