Li Xiao was falsely accused of being a deserter and expelled from the army, but he beheaded an enemy general in the enemy camp and was regarded as a hero. He hid in the enemy's camp and worked every step of the way, just to clear his name; while the young commander Xie Jin who had personally expelled him in the past was secretly tracking down the traitors in the army, and the two clashed again in blood and fire. Mu Yuan's poison, Duan Qianshan's secret letter, and Yun Niang's tea cakes all became the hidden clues that turned the tide of the war. When the truth is revealed, who is the real traitor?
