A break-in and sabotage attempt occurs at a top secret research institute and the culprit is cornered and captured. The problem is that he's been badly injured and claims to have lost his memory entirely. A cat-and-mouse game ensues between investigator Tuxan, the mystery intruder Welles and the people who sent him on the mission.
Cast
George Peppard
Tuxan
Michael Sarrazin
John David Welles / Peter Bellamy
Christine Belford
Nicole Devon
Cliff Potts
Carl Mosely
James Olson
Senator Stanton
Tim O'Connor
Frank Gossage
James McEachin
Bender
Alan Oppenheimer
General Hackett
Roger Dressler
Charlie Kitchen
Ty Haller
Henshaw
Anna Hagan
Dr. Plover
Hagan Beggs
Dr. Hager
John Destry
Zabrinski
Milos Zatovic
Dr. Zahl
Don Granbery
Technician
Robin Coller
Secretary
Bob Meneray
MP Sergeant
Richard Sergeant
MP
Ed Collier
Nicole's Doctor
John Mitchell
MP
Martin Moore
MP
Don Vance
Reporter
William Nunn
Reporter
Peter Lavender
Reporter
Barry Cahill
Reporter
Crew
Lamont Johnson
Director
Douglas Heyes
Screenplay
Leslie P. Davies
Novel
Edward M. Abroms
Editor
Michael Reed
Director of Photography
Roger Good
Assistant Director
Earl A. Glick
Executive Producer
Hal Roach, Jr.
Producer
Trevor Wallace
Producer
Frank Arrigo
Associate Producer
Ilse Richter
Wardrobe Supervisor
Phyllis Newman
Makeup Artist
Werner Keppler
Makeup Artist
John W. Gusselle
Sound Mixer
Herbert Ewing
Special Effects
Paul Hoffert
Original Music Composer
Cam Porteous
Set Designer
Margaret Hanly
Script Supervisor
Bob Herron
Stunts
David Ostere
Stunt Coordinator
Bill Lewthwaite
Associate Editor
Roy Piper
Associate Editor
Frederic L. Knudtson
Associate Editor
Harvie McCracken
Unit Production Manager
Ron Drinkwater
Focus Puller
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