American businessmen and missionaries working in China are captured and held prisoner by a local warlord.
| Actor | Role |
|---|---|
 Boris Karloff"General" Wu Yen Fang | "General" Wu Yen Fang |
 Gordon OliverJim Hallet | Jim Hallet |
 Beverly RobertsJane Creed | Jane Creed |
 Ricardo CortezGordon Creed | Gordon Creed |
 Sheila BromleyLola Galt | Lola Galt |
 Douglas WoodMyron Galt | Myron Galt |
| GGordon HartDr. Abernathy | Dr. Abernathy |
 Richard LooMr. Cheng | Mr. Cheng |
 Chester GanCapt. Nui | Capt. Nui |
 Vladimir SokoloffGeneral Fu Shan | General Fu Shan |
 Tetsu KomaiGeneral Mah | General Mah |
| MMaurice LiuConductor | Conductor |
 Selmer JacksonHarry | Harry |
| LLuke ChanAbernathy Servant | Abernathy Servant |