The US Government tries to track down embedded Nazi agents in the States.
William Eythe
Bill Dietrich
Lloyd Nolan
Agent George A. Briggs
Signe Hasso
Elsa Gebhardt
Gene Lockhart
Charles Ogden Roper
Leo G. Carroll
Col. Hammersohn
Lydia St. Clair
Johanna Schmidt
William Post Jr.
Walker
Harry Bellaver
Max Cobura
Reed Hadley
Narrator (voice)
Kenneth Konopka
Saboteur
