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