“Operation Mekong” is a Chinese-Hong Kong action film directed by Dante Lam. It’s loosely based on the real-life events surrounding the 2011 Mekong River massacre in which two Chinese cargo ships were attacked by a drug cartel in the Golden Triangle region of Southeast Asia. The film follows a Chinese narcotics officer named Fang Xinwu (played by Zhang Hanyu) who teams up with a Thai counterpart named Kris (played by Eddie Peng)