影片讲述了牛山县衙捕快沈梦星一次押送钦犯刘大牛的途中，阅历了各种奇遇。由于营救民女婉儿姑娘，龙门寨与龙门县知县穆元峰迸发了剧烈的抵触，不得已，龙门寨暂时解散。沈梦星孤身一人回到牛山县，却被从前下属汪捕头设计捉拿。原来朝廷通缉的榜文四处都是，沈梦星曾经不能够回到牛山县继续当捕快。当着刘知县和骆师爷的面，沈梦星为自己力排众议，论述自己上龙门寨入伙的苦衷，但是由于骆师爷和汪捕头的从中挑唆，刘知县最后还是

While policeman Shen Mengxing escorted the prisoner Liu Daniu to the provincial jail, they were kidnapped by the female robbers, Yu Niang and Xue Die, from Longmen Mountain in Longmen County. The two