A secret society kidnaps a man to force his sister to steal plans.
| Actor | Role |
|---|---|
 Wyndham StandingDick Sands | Dick Sands |
 Mary OdetteMouse | Mouse |
| RRex DavisJustin O'Reilly | Justin O'Reilly |
 Marguerite MarshOlga Beverley | Olga Beverley |
| CCarl TobiStephen | Stephen |
| GGreta Lobo-BraakensiekMoordenares | Moordenares |
 Willem van der VeerNot listed | Not listed |
| RRoy TraversNot listed | Not listed |
| CCor SmitsNot listed | Not listed |