明朝成化年间，朝纲(gāng )腐(fǔ )败，奸(jiān )邪当道。西厂(chǎng )东(dōng )厂为宦官(guān )把持，混淆(xiáo )黑白，陷害忠良，朝(cháo )野(yě )内(nèi )外噤若寒蝉(chán )。时有赵怀安（李连杰 饰）等流亡剑(jiàn )客挺身而出，接连铲除东厂数名奸佞，致令阉贼胆战心惊。适值此时，风头正劲的西(xī )厂