"The Iron Armor" is set on the eve of the fall of the Ming Dynasty, and unfolds the desperate struggle of Emperor Chongzhen trapped in the Forbidden City and the ruthless rise of Li Zicheng in Xi'an. In the north, where people are dying of hunger, Wu Sangui holds the last elite, wandering between loyalty and survival. A panoramic picture of the doomsday empire slowly unfolds, where power, humanity and the torrent of history collide fiercely, and everyone is looking for their own crossing.