A Counterspy in the US military is killed under suspicious circumstances. His friend, Jerry Baldwin, a Navy Commander, is assigned to replace him and stop a saboteur in a torpedo factory.

Willard Parker
as Commander Jerry Baldwin

Audrey Long
as Betty Iverson

Raymond Greenleaf
as Dr. George Vickers

Howard St. John
as David Harding

Alex Gerry
as Charles Kingston

Harlan Warde
as Hopkins

Anthony Jochim
as Robert Barrington

John Dehner
as Frank Reynolds

Fred F. Sears
as Peters
CinemaSerf
If you can get past the rather oppressive opening commentary, then this turns out to be not a bad adventure story that warns of the dangers of fifth columnists operating in the United States during the recently ended WWII. Fortunately for all concerned, they had "David Harding" (Howard St. John). No...