On a rainy night in Jiangcheng, Lin Mo, captain of the anti-drug detachment, led his team to round up the drug trafficker leader "Viper". Although he successfully seized the new drug "Blue Ice" and captured Viper, he unexpectedly learned that there was a huge cross-border drug trafficking group hidden behind it. As the investigation deepened, Lin Mo discovered that the core member of the group "Ghost" was ruthless and was inextricably linked to the death of his senior brother Chen Feng who died in the line of duty three years ago. At the same time, the emergence of the mysterious informant "Nightingale" not only brought key clues to the case, but also plunged Lin Mo into a crisis of trust. With the sacrifice of his teammates, the involvement of relatives and friends, and the difficult lurking of undercover agents, Lin Mo struggled through many difficulties. He not only had to tear apart the layers of disguise of the drug cartel, but also uncovered the truth behind the death of his senior brother. In the end, in a thrilling cross-border showdown, he wiped out the drug cartel and guarded the tranquility of Jiangcheng with his blood.
