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.
| Directing | Frank S. Mattison | Director |
| Writing | Cecil Burtis Hill | Adaptation |
| Writing | Calvin Holivey | Story |
| Writing | Rupert Hughes | Story |
| Writing | L.V. Jefferson | Adaptation |