Li (Sam Hui) works at a sanitarium as a male nurse, and Ah Tim (Michael Hui) is a handy man. One day, a bearded old man is sent into the sanitarium with a large bag. Ah Tim manages to steal the bag, and finds antique fragments inside. When the old man dies, the pair learn from his daughter that there is a sunken vessel that is loaded with much more than they already have, so they decide to go after the sunken treasure.
許冠文
as Ah Tim
許冠傑
as Lee
Roy Chiao
as Mr. Chiang Wo
Eileen Humphreys
as Princess
Lau Yat-Fan
as Police Chief
田俊
as Bike Policeman
顧嘉煇
as Weapon Expert Ah Hui
Hong Ga-Yan
as Nurse
許冠英
as Waiter on Skates
Wong Sam
as Dr. Wong
Chiang Nan
as Antique Dealer
Fung Ngai
as Mr. Chow
