Operation Mekong is a 2016 Mandarin-language Action Adventure film written by Kang Kei Chu, Dante Lam, Siu Kwan Lau, Eric Lin and Wai Ching Tam. The movie is directed by Dante Lam and produced by Jianxin Huang, Candy Leung and Huang Jianxin under the banner of Bona Film Group. Operation mekong stars Zhang Hanyu, Eddie Peng, Joyce Wenjuan Feng, Baoguo Chen, Xudong Wu, Wu Linkai and Abdul Azim Bin Mohammed Aris. The screenplay is written by Dante Lam, Kang Ki-chu and Lau Siu-kwan. The music was composed by Henry Lai along with Julian Chan and Lam Kwan-fai. Cinematography was done by Edmond Fung and editing by David Richardson. The motion picture has a running time of 124 minutes. It was released on 6th October 2016. The film made a box office gross of $173 million. Distribution rights for the motion picture were acquired by Distribution Workshop. Inspired by the true story known as the Mekong Massacre--two Chinese commercial vessels are ambushed while traveling down the Mekong River in the waters of the Golden Triangle, one of the largest drug-manufacturing regions in the world. 13 sailors are executed at gunpoint, and 900,000 methamphetamine pills are recovered at the scene. Upon discovery, the Chinese government immediately sends a band of elite narcotics officers led by Captain Gao Gang (Zhang Hanyu) to the Golden Triangle to uncover the truth behind the murders. Tea field owner and Golden Triangle-based intelligence officer Fang Xinwu (Eddie Peng) joins the investigation. After it is discovered that the drugs seized on the Chinese ships had been planted by the henchman of a notorious drug cartel leader named Naw Khar, the governments of Thailand, Laos, Myanmar and China launch a joint task force to apprehend the criminal. The road to justice is, however, paved with dangerous and deadly obstacles.