Episode Title:Iron and Stone.Episode Description:The mysterious tribe which captured Kai, Jay, and Zane, named the Dragon Hunters, take them to their leader, the Iron Baron, who seems convinced that the Ninja are Oni and killed the Ultra Dragon. They are escorted to a perilous arena and made to battle a dragon. In a bid to help their friends, Cole and Wu go undercover as Dragon Hunters. In Ninjago, Garmadon destroys Mr. E for failing to capture Lloyd, while the elemental masters, along with Mistaké, reveals to Lloyd that his friends are in Realm of Oni and Dragons and join the Resistance, and seek to inspire Lloyd to regain his power and next is his Golden Power.