Passengers bound to an African copper mine at Karanga to quell a native uprising encounter murder and intrigue on the way.
| Actor | Role |
|---|---|
 Charles BickfordJeff Worthing | Jeff Worthing |
 James CraigSteve Hawley | Steve Hawley |
 Luli DesteJulia Garrett | Julia Garrett |
 John SuttonDavid Wallace | David Wallace |
 Maurice MoscovitchPaul Stacco | Paul Stacco |
| PPaul HurstSlats | Slats |
 Abner BibermanManek Sen | Manek Sen |
 Ben CarterHiggins | Higgins |
 Frank ReicherDr. Greenleaf | Dr. Greenleaf |
 Addison RichardsEdmund Daniels | Edmund Daniels |