Starring Bruce Bennett, Virginia Field, John Beal, Clifford Severn, Larry
Parks, Lloyd Bridges
Directed by Lew Landers

Print: black/white
Runtime: 66 min.
Genre: drama
Print Quality: B

American naval forces are using a port in Iceland as a base for
anti-submarine patrols to protect North Atlantic convoys from Nazi subs.
The Nazis send undercover agents into the port in a scheme to blow up
the entrance to the harbor and keep the patrols blocked in. The officers
in charge of the patrols have to find the spies and stop them before they
achieve their objective.