Qin Zheng, recognized as the top mercenary leader in the dark world, retired from the army due to an old injury and returned to China. He just wanted to find his missing brother Han Yi and set up a legal security company to find a way out for his comrades who had followed him without having to sacrifice their lives. But as soon as he landed, a truce responsibility document was subcontracted, which simultaneously involved the city's wealthy families, hidden families, and overseas dark forces. Some people regard him as an ordinary security guard, some people want to take advantage of his life experience, and some people try to tear up the truce agreement brokered by him. Qin Zheng, who is usually arrogant and calm in situations, no longer fights alone. He wins the trust of his partners with his choices again and again, reunites his old troops, tracks down his brothers, builds a boundary bridge, and finally leads the team back to the armistice zone to liquidate the real powerhouse behind the scenes.
