On a stormy night in Jiangcheng, Lin Mo, captain of the Narcotics Squad, leads his team in an operation to capture the drug kingpin “Viper.” They successfully seize a new drug called “Blue Ice” and arrest Viper, only to learn that a huge transnational drug trafficking syndicate lies behind him. As the investigation progresses, Lin Mo discovers that the syndicate's core member, “Ghost,” is ruthless and deeply connected to the death of his senior fellow officer Chen Feng, who was killed in the line of duty three years ago. Meanwhile, the mysterious informant “Nightingale” brings crucial leads, but also plunges Lin Mo into a crisis of trust. With teammates sacrificing themselves, friends and family caught in the crossfire, and undercover agents facing perilous infiltrations, Lin Mo pieces together the clues through every obstacle. He must not only tear away the syndicate's layers of disguise, but also uncover the truth behind his senior's death. In the end, he wipes out the entire drug trafficking ring in a heart-stopping international showdown, protecting Jiangcheng's peace with his blood and courage.
