国境边陲云来市，卧底林凯（黄轩 饰）在随老大程毅（王砚辉 饰）交易时，遭到缉毒警突袭。危急时刻，林凯救下对方毒品贩子，随后一路被挟持到金三角，来到了狡猾狠毒的毒枭老鹰（段奕宏 饰）的巢穴。老鹰恼羞成怒，派儿子和林凯回到云来市，要查清究竟是谁吞了自己的钱和货。几番交手过后，林凯占据主动，要求老鹰将大中华地区的毒品经营权交给自己，实则是为了更进一步接近老鹰，以将这群犯罪分子一网打尽。从走出警校那一天，他便将自己的性命交给了国家和人民，所以必须抛弃原来的身份，以毒贩的嘴脸在这个罪恶横生的世界穿行。 没有回头之路，国法的捍卫者只有勇往直行……

2016 Hong Kong film directed by Jazz Boon

Realising that he will be defeated in no time during a police showdown, a thug shoots himself to force the cops to cease fire and take him to the hospital. In the hospital, he claims human rights to refuse immediate treatment in order to buy time for his underlings to rescue him. The detective in charge sees through his scheme but decides to play along so as to capture his whole gang once and for all.

Chan, an articulate senior detective nearing the end of his career, is taking care of the daughter of a witness killed by ruthless crime lord Po. Martial arts expert Ma is set to take over as head of the crime unit, replacing Chan who wants an early retirement.

2015 film by Ding Sheng

2015 film by Cao Baoping