一把大刀沾尽血腥无数 刀客沦为钦犯 问世间谁是英雄.无限电视电影“大刀王五”，剧情紧凑，武打动作出色。 　　清末年间，有一捕快王五（郑浩南），专替朝廷缉拿钦犯归案，由于擅用一把大刀，人称”大刀王五“。当时，御史安晓仁直言上疏，弹劝太监李连英干预朝政，触怒慈禧，命王五剿杀安史全家，王五为免杀错忠良，竟公然抗命，并且招致灭门之祸。王五之妻（蓝洁英）亦修遭杀害，从此王五携同幼子流浪天涯，闯荡江湖，朝廷派出大内都统萨多（尹杨明）追杀父子，斩草除根。在流浪途中，王五遇到留洋回来的女医师程心兰（翁杏兰），两人曾共患难，兰更因而倾慕五，及后兰得知五竟是自己的杀父仇人，陷于情义两难的局面。另一方面，王五与萨多交手数次，两人虽惺惺相惜，然而命运作弄，最终仍不能避免一场生死决战……

In the late Qing Dynasty, the policeman Wang Wu (played by Zheng Haonan) was dedicated to arresting imperial criminals for the court. He was called the "Wang Wu of the Big Sword" because of his good use of a big knife. An Xiaoren, the imperial censor of the time, spoke bluntly, impeaching the eunuch Li Lianying for interfering in the government, which angered Cixi. Xi ordered Wu to suppress and kill Ren's family, and Wu to avoid killing Zhongliang by mistake, but he openly disobeyed the order, thus incurring the disaster of exterminating the family. Wu's wife Ao Xue (played by Lan Jieying) was brutally murdered, and Wu Sui and her young son wandered around the world. Sado (played by Yin Yangming), the governor of the imperial court, was ordered to hunt down the five fathers and sons. Although the five and many cherished each other, the two still could not escape a life-and-death battle in the end...