Episode Title:A Little Rusty.Episode Description:Now that Jestro and the Cloud of Monstrox have the Staff of Monstrox, they head to the Iron Mountains where the Cloud of Monstrox awakens a Rogul that held a tablet containing the Forbidden Powers of Relentless Rust where the Rogul also rusts any metal that it touches. During the Stone Monster Army's attack on Armorville, the Rogul starts rusting every armors it comes in contact with while the Cloud of Monstrox reanimates the statues there. Now Merlok 2.0 and Ava must work on a new power upgrade that would enable the Nexo Knights to defeat the Stone Monster Army.