The Gold Connection(1979)

Martial arts teacher Ah Wei (Bruce Li) discovers a hidden stash of Vietnamese gold while scuba diving with his friends and divides it up between them. The gang who stole and stashed the gold track Wei and his friends down one by one, in order to get back what they believe to be their property. Wei must use his Kung Fu skills to defend himself, and the people he cares about, in this brutal and thrilling martial arts noir.