Two brothers and small time crooks Yipao and Taipao convince a martial arts expert to take them on as students, completely oblivious to his sordid past.Two brothers and small time crooks Yipao and Taipao convince a martial arts expert to take them on as students, completely oblivious to his sordid past.Two brothers and small time crooks Yipao and Taipao convince a martial arts expert to take them on as students, completely oblivious to his sordid past.