An FBI agent on vacation in the mountains begins to suspect that a Communist spy ring may be operating in the area.
John Ireland
as Ralph Payne
Dorothy Malone
as Donna Weeks
Keith Larsen
as Ted Noland
Dolores Donlon
as Peggy Weeks
John Craven
as Dr. Lanson
Susan Cummings
as Joan Cochran
Joe Bassett
as Chief FBI Agent Malone
Burt Wenland
as Burke
Steven Clark
as Johnny, Ski Instructor
Murray Alper
as Mike
Harold J. Kennedy
as Sheriff Bowman
