The protagonist Qi Xiangwen was threatened by gangster Zhang Shenyan with of his mother's illness. He pretended to be a member of the Geological Bureau and deceived Professor Hu, the owner of Laozi's rune with mysterious power, to open the secret cave of the ancient Qinling Mountains to steal treasures. During the exploration, only Qi Xiangwen managed to return, and was treated by Luo Jin's sister Luo Xin. However, the trauma done to his head resulted in amnesia. When gangsters and giant spiders attacked the village he was staying at to recover, he rescued the village and became a hero in the eyes of the villagers. When he and the search and rescue team enter the secret cave again, his memory resurfaced thanks to the gangsters. In the contest between good and evil, he chose to fight against the gang with the search and rescue team, and finally chose to sacrifice himself to save everyone......

This film tells the story of two generations of narcotics officers, a father and son, who relentlessly pursue the eradication of a drug trafficking ring. The protagonist, Song Wentai, infiltrates the drug ring to become an undercover agent, joining forces with other narcotics officers to break through numerous mysteries. Through a long period of careful planning, they eventually bring the drug dealers to justice, triumphing over evil and achieving personal growth and transformation....