Ninja in Action (1987)

Plot

A skilled ninja teams up with his American girlfriend to track down the ruthless killer who took her father's life and absconded with a valuable stash of diamonds. Their quest leads them to the bustling streets of Hong Kong, where danger lurks at every corner. As they navigate the underworld and confront various enemies, the pair must rely on their wits and martial arts prowess to uncover the truth and seek vengeance. With tension and action building, their journey becomes a thrilling race against time.