Wang Chun, a veteran diver, is hired to recover a large quantity of gold bars from a ship sunk during the retreat of Japanese soldiers from Hong Kong. But no sooner has the treasure been found, then former Japanese military man, Arakawa, and his men arrive in a speedboat. Arakawa kills Wang's boss, seizes the gold and forces Wang to steer his boat to safety. A struggle ensues. The speedboat sinks after striking a reef. Wang escapes with the gold. He later marries a girl named Yen-yen. They settle down in South Korea, where Wang owns a big ranch. They have a daughter, Shan-shan. 7 years later, Arakawa returns, he demands Wang to hand over the gold bars with Yen-yen and Shan-shan as hostage..
Stunts
Sammo Hung underwater fight choreography, utterly unhinged
Practical Effects
Real diving sequences, real explosions, real commitment
Acting
Ko Chun-Hsiung's simmering survivor's guilt

Director
Jeong Chang-hwa
Trivia, insights & behind the scenes
Sammo Hung's early choreography work here shows the gymnastics-to-combat style he'd perfect in the 80s.
The Japanese villain trope reflects 1970s Hong Kong cinema processing WWII occupation trauma through exploitation genres.