Merchant Marine sailors Joe Rossi (Humphrey Bogart) and Steve Jarvis (Raymond Massey) are charged with getting a supply vessel to Russian allies as part of a sea convoy. When the group of ships comes under attack from a German U-boat, Rossi and Jarvis navigate through dangerous waters to evade Nazi naval forces. Though their mission across the Atlantic is extremely treacherous, they are motivated by the opportunity to strike back at the Germans, who sank one of their earlier ships.
Humphrey Bogart
as Lt. Joe Rossi
Raymond Massey
as Capt. Steve Jarvis
Alan Hale
as Boats O'Hara
Julie Bishop
as Pearl O'Neill
Ruth Gordon
as Mrs. Sarah Jarvis
Sam Levene
as Abel 'Chips' Abrams
Dane Clark
as Johnnie Pulaski
Peter Whitney
as Whitey Lara
Dick Hogan
as Cadet Robert Parker
Louis Adlon
as German Ensign (uncredited)
Iris Adrian
as Jenny O'Hara (uncredited)
Frank Alten
as German (uncredited)
