A new drug "Misty Butterfly" suddenly spread in Linchuan City. Lu Xun of the Anti-Narcotics Corps and Shen Yan of the Criminal Investigation Detachment were forced to team up to handle a mass poisoning case.
The shadow of the border undercover tragedy three years ago still hangs over Lu Xun, and Shen Yan is burdened with the obsession of the old case of his brother's death in the line of duty. From conflicting ideas to a life-and-death relationship, the two of them followed the clues of drug logistics and underground processing plants in a mysterious case, and gradually uncovered a drug trafficking network across the country.
As the investigation deepens, they discover that behind this drug network lies the layout of the transnational drug lord "Jackdaw", which also involves the protective umbrella within the police force. In ambushes in border jungles, secret battles and sieges in cities, they have to fight not only armed drug dealers, but also the undercurrents within the system and the darkness of people's hearts.
This is a war without gunpowder. They walk on the edge of the abyss, using themselves as shields to guard the last line of defense for thousands of lights. The anti-drug war is nameless, the heroes are nameless, but there is still light under the abyss.
Purpose: To pay tribute to the frontline anti-drug police, to show the hardships and sacrifices of anti-drug work, to convey the belief of "guarding the lights of thousands of homes and never bow to the darkness", to expose the harm of drugs to society, and to promote the spirit of perseverance and justice.