Three years ago, undercover border police officer Jiang Yuan'an died mysteriously. The official conclusion was that "his identity was exposed and his mission was a mistake." Criminal investigation team leader Lu Xuan was trapped in his obsession for three years, but no results were found after repeated investigations. Xie Ye, a former special reconnaissance soldier who returned from abroad, returned to the country with half of his life and death nameplate, hid in a rental house in an old alley, and secretly joined forces with Lu Xuan. Step by step, the two uncovered the ghost chain within the city bureau, the cross-border drug trafficking and black gold network, and the truth about the undercover agent that had been tampered with three years ago.
Concept: Realistic criminal investigation / Redemption of two male protagonists / Old unsolved cases / Group portraits to crack down on gangsters