In the shadows on the Yunnan border, an anti-drug storm spanning life and death is brewing.
Lin Feng, an outstanding graduate of Yunnan Police Academy, originally planned a bright future with his girlfriend Chen Xi - joining the criminal investigation detachment together, buying a house, getting married, and living an ordinary and happy life. However, on the day of the graduation ceremony, the appearance of Yang Jianguo, leader of the Provincial Anti-drug Corps, completely changed the trajectory of his life.
Yang Jianguo brought a heavy secret: Lin Feng's father, Lin Weiguo, an anti-drug policeman who died fifteen years ago, did not die in an ordinary line of duty, but was brutally killed while performing an undercover mission. What is even more shocking is that the huge drug trafficking group "Lion King" that led to Lin Weiguo's sacrifice is still active today, and the unfinished tasks of the year are waiting for a new successor.
Faced with his father's unfinished mission, Lin Feng fell into a painful choice. On one side is the stable future promised to my lover, on the other side is the heavy responsibility of family and country. In the end, he resolutely embarked on the path his father had taken and accepted an extremely dangerous undercover mission.
