My Kung Fu 12 Kicks

A small-time pickpocket lands himself in trouble with a local loan shark and takes a severe beating as a result. An elder gets him back on his feet and suggests he learn kung fu. When he arrives at the martial arts school, he finds the masters being beaten by the evil, yet skilled Kwai. He nurses the masters back to health, and they agree to train him in order to take revenge on their attacker.