On his first day on the job, young police officer Lin Shen accidentally becomes a partner with the mysterious former undercover police officer Jiang Lin. The two were involved in a conspiracy involving the transnational crime syndicate "Shadow" due to a bizarre murder. As the investigation deepened, they discovered that the case was related to a failed operation three years ago, and Jiang Lin's past gradually emerged.
During the investigation, Lin Shen and Jiang Lin gradually established deep trust and tacit understanding. They discovered that "Shadow" was not only involved in drug dealing, but was also secretly developing a new drug called "Blue Moon" that could control human consciousness. In order to uncover the truth, the two ventured into the tropical rainforest of Southeast Asia and found the raw material planting base of "Blue Moon". However, what awaits them is a darker truth - Zhang Ming, who was thought to be dead three years ago, was resurrected as an "experiment" and became a puppet of "Shadow".
In the final showdown, Jiang Lin chose to sacrifice himself, destroyed the "Shadow" laboratory, and handed all the evidence to Lin Shen. Lin Shen continued to pursue the truth with the USB flash drive left by Jiang Lin and the unsolved mysteries.
Purpose: This is a story about justice, revenge and redemption.