In protecting a group of children from bullying and gang violence, the gallant 'Lady Bond' Kong Yin stays with the family of driver Lee Pak in order to give classes in self-defence to Pak's younger brother Calf and neighbours Tak, Ah-ling as well as the young woman Sheung, drilling them in the moves and techniques. Startled by her striking resemblance to his kidnapped girlfriend Tong Ching-yee, Tse Tsi-ming pleads with and convinces Kong to pose as the missing girl to visit her bedridden grandfather Chung-sau. The masterminds behind the abduction, Tong's stepmother and her nephew Chan Chi-biu capture also Tse and the children. Tse brilliantly manages to alert Kong. Fighting and apprehending her opponents, Kong frees the hostages and hands the criminals over to the authorities.
as Kong Yin/ Tong Ching-yee
as Tse Tsi-ming
as Lee Pak
as Chung-sau
as Tong's stepmother
as Chan Chi-biu
as Sheung
as Tong Yik-leung
as Calf
as Tak
as Hon
as Ah-ling
as Ming
as Big Three Dragons
as Inspector Lai
as Lee Hak
as Little Girl
