Modern special forces travel to Zhou Qi, the border army of the Daning Dynasty. They face changes in positions, external threats such as the Cang Wolf King, and trace the undercurrent of the cult organization "All Living Beings". At home, he learned that his wife Gu Yilan was pregnant and had an old relationship with the king of Boliang, so he spontaneously led a team to go to Boliang to exchange for the scarce iron ore, and was also canonized as Princess Hening. On the way, a substitute is set up to resolve the assassination crisis. Zhou Qi improved ordnance, discovered talents, trained troops to prepare for war, fought against the hidden forces of all living beings, and uncovered some traitors. Later, Zhou Qi led the motley crew of the Ordnance Bureau to Yanyong to participate in the Zhenbei Army's military exercise. All forces gathered together, and the contradictions further intensified.
