影片取材自境外幸存人质真实自救经历。驻外记者马笑(肖央 饰)和志愿医生潘文佳(齐溪 饰)夫妇,陪同工程师苗峰(郑恺 饰)赴郊区修理基站,当地局势突变。三人一路躲避恐怖组织的无差别袭击,最终还是被绑架沦为人质,并在狱中结识了华侨商人周伟杰(任达华 饰)。面对恐怖分子闻所未闻的屠杀暴行和以命换钱的勒索,他们历经105天,展开了一场惊心动魄的自救逃生。
Based on the novel by Karel Capek, the prominent Czech writer of the early 20th century who coined the word robot for his play R.U.R., the story revolves around a discovery of Krakatit - a powerful explosive - by Prokop, an experimental scientist who, following an accidental explosion in his lab, slips in and out of delirium. When he realises that, in a delirious period, he has given the formula for making Krakatit to one of his colleagues, he tries to find the man, who does not realize how dangerous a thing Krakatit is. In the process, he nearly gives his discovery away again to foreign interests, a group of anarchists, and even greater forces of darkness...