It's 1645, and the forces loyal to the Ming are fast losing out to the Ching (
满语). Treacherous quisling Shu Ting Kao betrays Captain Sher and takes him prisoner, as per the (Ching) emperor's orders. Sher's loyal comrades include Yuen, who is the daughter of a general recently killed in battle. Yang Chao is overrun, but Sher's comrades disguise themselves as Ching soldiers to rescue him.