Undercurrents are surging in Yunzhou, and the mysterious sect secretly infiltrates the court and the military camp. The forces are intertwined and bring chaos to one side. Zhou Qi sensed the murderous intention and carefully set up a stand-in puzzle to protect his pregnant wife Gu Yilan and resolve the interception crisis. In order to explore the enemy's secrets, his boss Du Fei was willing to go to jail, endure the humiliation and go undercover, pretending to submit and obtain intelligence. At the same time, Gu Yilan went deep into the layout of the magistrate's back house, and Sang Li and Jian Xi went through dangerous situations and developed feelings for each other. Everyone joins forces to tear apart the layers of disguise, fight against the hidden dark forces, break through the intrigues and life-and-death tests step by step, and stick to their true heart and friendship.
