Ming Dynasty, Jiajing period. Anshun Tongpan Yang Tinggui was killed, and the imperial guard Jiang Xiao was ordered to investigate. He unraveled the mystery and locked the real murderer to be the commander Li Jiangxiong. When arresting Li Jiangxiong, he found that he had fallen into a trap set by others. With the help of Li Jiangxiong's adopted daughter Li Xueyi, Jiang Xiao broke out of the trap and wiped out the mastermind behind the scenes.
