Lord Garmadon summoned the Mud Monsters to defeat Master Wu during their fight. Just before he was completely enveloped, Master Wu revealed that Lloyd was in trouble, causing Garmadon to rescue him from the Mud Monsters in order to learn more about his son's predicament.
- 48. "The Temple on Haunted Hill" (pictured)
- They are similar in shape to the Rock Monsters from the LEGO Power Miners theme.