Dr David Sheppard (Richard Egan) is a scientist and security expert from the Office of Scientific Investigation (OSI) in Washington, DC who is called in to investigate some mysterious deaths at a secret underground military facility run by Dr Van Ness (Herbert Marshall) in the desert, where a space station is being constructed.
Sheppard discovers that the deaths are due to deliberate sabotage of the facility’s master computer, NOVAC (Nuclear Operative Variable Automatic Computer), which controls and coordinates all the equipment in the facility.
He eventually determines that a powerful radio transmitter and receiver were secretly built into NOVAC during its construction in Switzerland.
An unmanned enemy plane – with a fibreglass body that does not register on radar – has been flying overhead, beaming ultra-high-frequency radio signals into the facility to control NOVAC.
NOVAC, in turn, controls Gog and Magog, two huge mobile robots with multiple arms, powerful gripping tools, and other implements.
Dr David Sheppard
Richard Egan
Joanna Merritt
Constance Dowling
Dr Van Ness
Herbert Marshall
Dr Zeitman
John Wengraf
Dr Pierre Elzevir
Philip Van Zandt
Mme. Elzevir
Valerie Vernon
Maj. Howard
Stephen Roberts
Dr Carter
Byron Kane
Dr Peter Burden
David Alpert
Dr Hubertus
Michael Fox
Engle
William Schallert
Helen
Marian Richman
Marna Roberts
Jean Dean
Senator
Tom Daly
Gog/Magog operator
Billy Curtis
Director
Herbert L. Strock