This film is also known as Rage of the Master(s). I'm a big fan of Wang Yu, but this one is really weak. Tiger Wong (Wang Yu) is a kung fu master who lives with his ailing mother. He has taken a vow to his dead father to never use his skills to kill. When a local thug recruits five Thai Boxers to kill Mr. Fung, the thug's former Sifu (who had banned him from the school), the Fung family asks Tiger Wong to help them avenge the crime. His mother won't allow it. Eventually, the killers attack Tiger's mother and he goes after them. The dubbing in this one is probably the worst ever. The dialogue makes little sense and is contradictory in some places. Wang Yu's fights, which are normally innovative, are uninspired and boring. I paid $2.95 for the DVD on E-Bay, so I guess it was worth it, but overall I found this film disappointing.