A secret apparatus that controls bombs by remote control is stolen from a laboratory. A federal agent is assigned to recover it, and his investigation leads him to a creepy mansion that is honeycombed with secret passage ways.
| Actor | Role |
|---|---|
 Lloyd HughesAgent Ted Kelly | Agent Ted Kelly |
 Sheila BromleySally Flint | Sally Flint |
 Forrest TaylorDr. G. Marston | Dr. G. Marston |
 Jack MulhallGeorge Lesserman | George Lesserman |
 John ElliottHoward Walsh | Howard Walsh |
 Fuzzy KnightLefty Hogan | Lefty Hogan |
 Syd SaylorRed | Red |
 Miki MoritaYlon | Ylon |
| JJohn CowellCommander Wilson | Commander Wilson |