港岛雪夜，街头无差别扫射，血流成河；医院爆炸火光冲天，惨叫此起彼伏。
这不是末日，是毒品操控下的城市炼狱。
毒贩以毒品掌控城市命脉，杀手为争夺货源血洗街头，警方在阴谋中艰难前行——当三方势力陷入混战，最令人窒息的逆转突然降临：操纵一切的毒贩，竟开始全面禁毒？雪夜之下，谁是幕后推手？谁能从这场罪恶风暴中全身而退？

Follows an investigator as he prevents a terrorist attack during a symposium held by Hong Kong's Independent Commission Against Corruption. He later finds it has links to human trafficking in Thailand.