明朝成化年间，朝纲(gāng )腐败，奸邪当(dāng )道。西厂东厂(chǎng )为宦官把持，混淆黑白，陷害忠良，朝(cháo )野(yě )内外噤若寒蝉。时有赵怀安（李连杰 饰）等流(liú )亡剑客挺身而出，接连(lián )铲除东(dōng )厂(chǎng )数(shù )名奸佞，致令阉贼胆战心惊。适值(zhí )此时(shí )，风头正劲的(de )西厂