Chemistry genius Lin Yuxuan had always led a peaceful life, until his older brother, undercover police officer Lin Yufei, was killed in the line of duty, his nephew went missing, and his niece fell into a coma. He then embarked on a path of revenge. Su Yaoyao, a brave and decisive narcotics officer who had been Lin Yufei’s student, resolutely joined the deadly struggle against the drug dealers.
In Mingshan City, they face danger at every turn as they fight the drug dealers. They meet Zhao Ming, once a narcotics officer but now fallen on hard times after becoming addicted to drugs, and Han Lei, deputy captain of the city’s narcotics squad. After repeated failed operations and further investigations, Lin Yuxuan even infiltrates the drug dealers’ ranks as an undercover agent, enduring life-and-death ordeals.
Later, Lin Yuxuan ventures into the dangerous Golden Triangle, where he meets members of a resistance group and joins them in fighting drug lords. In fierce battles, they stop a massive drug deal and avenge his brother. But victory is short-lived. New drug gangs keep rising, and mysterious figures and international trafficking organizations soon emerge. Lin Yuxuan and Su Yaoyao return to the fight.
They track the drug dealers across borders, overcoming countless hardships and dangers. In one breathtaking battle after another, they gradually uncover the mysterious organization and bring down the international trafficking ring. But the undercurrents of drug crime never stop. New challenges follow one after another: a secret drug lab is discovered, and the mastermind behind a new narcotic plots revenge. With unbreakable resolve and fearless courage, Lin Yuxuan and Su Yaoyao repeatedly fight their way out of deadly predicaments and face the drug dealers in a final showdown, striving tirelessly for a world without drugs. With their lives and blood, they write a legend of justice against evil, becoming heroes in the hearts of the people and giving them hope that drug crime can be defeated.