Dr. Ho decides to move to a backward island off the coast of Taiwan to look for his missing father. He meets nurse Ya Lan (Cheng Pei-Pei) who falls in love with him. But dastardly doings are afoot as Dr. Ho's enemies plot against him.

Northeastern China is infested with bandits. Hsiao Kai (Paul Chang Chung), a wandering knight, captures a white horse from thieves. His skilful handling of the horse earns his admiration of fellow traveler Chu Ching Hsu (Wong Chung Shun). They arrive at Lo Lung Kow, where the villagers hunt for a living and are constantly terrorized by bandits. Grocer Ting Tze Pao (Ngai Ping Ngo) returns from his negotiations with the bandits with bad news. They intend to collect furs from the villagers at a fixed price. Village leader Mu (Yuen Sam and his daughter Tsui Ying (Pat ting Hung) run a tavern. She wonders how the white horse belonging to a Sinkiang youth named Sha Yi Ti (Man Ling) is now in the possession of Hsiao Kai.