明朝成化年间，朝纲(gāng )腐败，奸邪当道。西(xī )厂东(dōng )厂为宦官把持，混淆(xiáo )黑白(bái )，陷害忠良，朝野内外噤若寒蝉。时有赵怀安(ān )（李连杰 饰）等流亡剑(jiàn )客挺身而出，接连(lián )铲除东厂(chǎng )数名奸佞，致令阉贼(zéi )胆(dǎn )战心惊。适值此时(shí )，风头正劲的西厂