Wu Yu, a newcomer to the Public Security Bureau, is gentle and frail. He doesn’t care about the difficulties posed by Bu ZhongHua, his strict boss, and only wants to stay in the background and be paid on time with enough to sustain himself. However, no one knows that he is being targeted by top drug traffickers for a large bounty, or that this courageous young man had previously slaughtered the dragon of the abyss. With a chain of interlocking cases, a series of troubles come one after another. Can these two work together to survive the difficulties?