女儿在街头被拐走,店主(谢苗 饰)探寻一个复杂的犯罪网络,不择手段将女儿救回来。他唯一的盟友是一名记者(乔·塔斯利姆 饰)。这两个来自不同背景的人物必须学会相互信任、合作,运用自己不为人知的过去所赋予的格斗技能。
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...