The Lost Generals were Lord Garmadon's former generals that he fired a variety of reasons, and are minor antagonists in The LEGO Ninjago Movie. After being fired, they started a colony inside a jungle, and built a village with a volcano in the middle so that they could seek revenge.
When Lord Garmadon was unsatisfied with his generals, he used to fire them from his volcano lair. However, he didn't know that his generals were creating a small colony into the woods.
While the Ninja and Garmadon were searching for the ultimate ultimate weapon in the jungle, the Lost Generals attacked them. Their attack was successful as they captured Lloyd and Garmadon. The other Ninja escaped and came back after watching a bunch of kung-fu movies in order to train themselves. However, the Lost Generals were going to throw Lloyd and Garmadon in a volcano. The Ninja sneaked undercover and rescued Lloyd and Garmadon but one general ripped off Lloyd's arm. The Ninja found his arm and escaped by building a vehicle.