A series of murders breaks out in the city center. Zhang Xiaoyu, a female police officer with trace studies, is stuck in a deadlock in solving the case. Her superiors assign Cheng Jie, an active-duty officer who has just returned from the peacekeeping force, to assist in the investigation. He was once a top sniper and now joins the task force as a security consultant. One is good at finding the truth from clues, and the other is accustomed to seeing the overall situation at the edge of danger. Their completely different styles of handling cases caused constant conflicts between the two at first. But as the investigation deepened, they discovered that behind the case were military secrets from many years ago, and the murderer's methods were ruthless and highly targeted. Gu Yan's battlefield experience perfectly complemented Lin Xi's criminal investigation expertise. On the way to pursue the murderer, he protected her from the wind and rain, and she healed his past trauma. From urban streets to the wilderness, they work together to fight against enemies in the dark. In life-and-death tests, the collision between military uniforms and police uniforms creates fiery sparks. When the truth was revealed and the crime was brought to justice, they not only protected the tranquility of the city, but also gained a deep and firm love for each other across mountains and seas.
Purpose: In the game of danger and truth, interpret the meaning of faith, salvation and walking side by side.