明朝(cháo )成(chéng )化年间，朝纲(gāng )腐败，奸(jiān )邪当道。西厂(chǎng )东(dōng )厂为(wéi )宦官把持，混淆黑白，陷害(hài )忠良，朝野内外噤若寒蝉。时有赵怀安（李连杰 饰）等流亡(wáng )剑客(kè )挺(tǐng )身而出，接连铲除东(dōng )厂数名奸(jiān )佞，致令阉贼胆战心惊。适值此时，风头正劲(jìn )的西厂