Spies hold the son of a nuclear physicist (Gene Barry) hostage in exchange for the Los Alamos bomb formula.
Gene Barry
as Dr. Frank Addison
Lydia Clarke
as Martha Addison
Michael Moore
as Russ Farley
Nancy Gates
as Ellen Haskell
Lee Aaker
as Tommy Addison
Milburn Stone
as Insp. Harold Mann
Bert Freed
as Emil Jablons
Frank Cady
as F.B.I. Agent George Weinberg
Houseley Stevenson Jr.
as 'Greg' Gregson
Leonard Strong
as Donald Clark
Jerry Hausner
as John Pattiz
John Damler
as Dr. Peter Rassett
