"All Men Are Brothers" is the sequel to "Water Margin" a.k.a. "Seven Blows of the Dragon" from 1972. At the beginning of "All Men Are Brothers", we learn that the emperor forgives the 108 Liangshan rebels since he finds they have the same enemies. The small army tries to conquer the city Hangchow, but is defeated. They send 7 spies to gather information about the city's defense before they attack a second time.