An evil villain steals a newly invented death ray.
| Actor | Role |
|---|---|
 Charles FarrellCapt. Robert Lawrence | Capt. Robert Lawrence |
 Julie BishopBarbara Fiske | Barbara Fiske |
 Hugh SothernDoctor Harlan Fiske | Doctor Harlan Fiske |
 Alexander D'ArcyPerez | Perez |
 Jason Robards Sr.Muller | Muller |
 Charles D. BrownMajor Loy | Major Loy |
 Addison RichardsColonel King | Colonel King |
| FFrederick BurtonGeneral Darrow | General Darrow |
 Selmer JacksonJules Peabody | Jules Peabody |
 Reed HowesRoy Curran | Roy Curran |
 James MillicanPilot | Pilot |
 Vernon SteeleOfficer | Officer |