Kam Kong plays an evil Manchurian General, who desires to crush the revolutionaries who have ties to the Shaolin temple. Chen Kuan Tai is Iron, a naive young man who is unaware that his father is a leader of this underground movement. An undercover operative named Ho Yeng, who conned his way into joining the rebellion, betrays Iron’s father. The entire family is captured (except for Iron) and the General schedules their executions the following day. Since the leader of the rebellion is now in his clutches, the General focuses on the capture of his enemy’s son, Iron. A witness to this heinous act warns Iron and he manages to escape the village and avoid capture from the Qing army. He becomes a wild, animalistic wanderer who survives by stealing food from a nearby Shaolin temple. He also watches the hopefuls who train in the martial arts there. A group of students eventually catch him breaking into the temple, and they comment on his monkey-like agility. One student (Chi Kuan Chun) follows him into the woods and suggests that Iron become a student of the Shaolin Temple. The Abbot is more than happy to accept him as a pupil, but he notices the look of anger in the young man’s eyes. Iron refuses to comment on his agenda or his identity, so the Abbott assigns him a new identity—that of Iron Monkey.