Lu Chen, a retired superpower, unexpectedly meets criminal investigation team leader Su Wan due to a series of bizarre murders involving an ancient secret treasure. From mutual suspicion and conflict of ideas, the two were forced to join forces to investigate the case, and gradually uncovered the conspiracy of the mysterious organization "Night Owl". They also solved the mystery of the disappearance of Su Wan's father and the truth behind Lu Chen's retirement. In the tests of life and death, the two redeemed each other, and finally joined hands to protect the peace of the city, realizing the righteousness of the family and the country and the perfection of personal emotions.
