The film was directed and written by Chor Yuen, produced by the Shaw Brothers Studio, and starred Ti Lung as the lead character.

Chu Liuxiang and Zhongyuan Yidianhong pass by a shipwreck and meet Master Kumei.

They also discover that a group of highly skilled pugilists have been murdered at a gathering in Siming Mountain Manor.

They hear of Bat Island, a mysterious place where anyone can buy anything he desires, as long as he has money.

However, they are not the only ones going there: Li Yuhan and his wife, Liu Wuming, are there in search of an extraordinary drug; Jin Lingzhi is there to find her father; a group of imperial guards are there to arrest the Bat Prince.