In 1997, before the anti-drug bureau was established, Halan City in Northeast China formed a temporary elite team to tackle a sudden drug crisis. Despite their skills, they are unfamiliar with new drugs and must confront ruthless traffickers and devious smuggling methods while grappling with moral dilemmas and the tests of justice and humanity. United by their courage and determination, they create a stirring legend of fighting crime and corruption.

In 1988, criminal policeman Wei Guo Ping witnessed the deaths of his comrades during an operation around a serial murder case where the culprit escapes. This has left Wei Guo Ping scarred from the incident. Eight years later, the appalling corpse dismemberment case has shocked the city of Ningjiang. At this time, Wei Guo Ping has already grown into a seasoned police captain.

In 1986, 20-year-old Chen Bao Jin came to the Altai region to find his brother who was missing in the gold rush. He was tangled between life and death in the complicated environment and was also trapped between many forces. At the same time, strange things happened one after another. After layers of uncovering, the clues all point to the mysterious place with huge treasures and no survivors—Sister Sea. He struggled with people and nature, and finally discovered the mysterious "Well No. 7“ in the Sister Sea, and found the truth about the disappearance of his brother. He then realizes bravery and kindness are the greatest treasures of mankind. Adapted from the novel "1986 Tao Jin Jing Hun" (1986淘金惊魂) by Lai Er (来耳).

A father and son represent two generations of policemen as they risk their lives in the war against drugs.