When Professor Preece is sent to prison for passing secrets to a foreign agent but escapes to settle accounts with the real traitor (his son), a chance meeting with Judy alerts Gardiner to Preece's plans.
Edward Boyd
Writer
Derek Bennett
Director
Edwin Richfield
Steve Gardiner
Keith Barron
Det. Sgt. Swift
Moultrie Kelsall
Chief Insp. Gordon
Sarah Lawson
Judy Gardiner
Helen Lindsay
Mrs Preece
John Wentworth
Preece Sr.
Alec Ross
Preece Jr.
Arthur Lawrence
Bartley
John Junkin
Male Nurse
Jack Austin
Taylor