The Chinese Secret Service sends an undercover agent to investigate reports of an island ruled by a Chinese criminal named The Cobra who holds the residents in virtual slavery while running his illegal narcotics and white-slavery empire.
| Actor | Role |
|---|---|
 Sôjin KamiyamaMing Foy / Wing Foy / The Cobra | Ming Foy / Wing Foy / The Cobra |
| AAlbert ValentinoMark Conover | Mark Conover |
| IIris YamaokaFoo | Foo |
 Ben F. WilsonSam Warren | Sam Warren |
 Jimmy AubreyWillie Kegg | Willie Kegg |
 James B. LeongLee Mandarin | Lee Mandarin |