Lego Nexo Knights Season 4 Episode 5 The Stranger in the Halps Episode Title:The Stranger in the Halps.Episode Description:After his rage sabotages an interrogation attempt, Clay leaves the team to meditate until he can control his rage. Elsewhere, Jestro and the Cloud of Monstrox have gotten their hands on the Forbidden Power of Devious Demolition (which causes parts of rocks objects and structures to break off). This Forbidden Power enables the Cloud of Monstrox to bring the debris created by it to life in order to overwhelm the Nexo Knights. When Jestro cause an avalanche that disables the Nexo Power transmitter, the Nexo Knights are forced to retreat to the top of a mountain where they meet up with Merlok's old friend, magician/demolitions expert "The Great Rockowski" who has devoted his life to pacifism until the Stone Monster Army destroy his topiary. After Rockowski forces the Stone Monster Army to retreat, the Nexo Power transmitter is repaired. Meanwhile, the Forbidden Power of Devious Demolition is transferred into another pillar atop Mount Thunderstrox. While Clay is meditating, he sees Ruina invade his mind causing him to become even more violent, vengeful, and more than willing to send the entire Stone Monster Army, Jestro, and the Cloud of Monstrox to their graves.