The story of Wai Siu Bo, a pimp who after saving Chan Kan Nam, the leader of the Heaven and Earth society, a revolutionary group, is made a member. After a botched first assignment for the group, he is made a servant to the Prince, the very person the Heaven and Earth society want to overthrow. What follows is plenty of mayhem and laughter.

After discovering that the Empress is actually Lung Erh, a member of the St Dragon Sect, and that she imprisoned the real empress. Lung Erh, is bent on eliminating the person who disclosed her true identity, Wai Siu Bo. But more complications ensues when Lung Erh is assigned to protect the Prince, whose servant is none other than Wai Siu Bo.