Action in the North Atlantic

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.

• 
  Lloyd Bacon

• 
  Humphrey Bogart
  Lt. Joe Rossi
• 
  Raymond Massey
  Capt. Steve Jarvis
• 
  Alan Hale
  Boats O'Hara
• 
  Julie Bishop
  Pearl O'Neill
• 
  Ruth Gordon
  Mrs. Sarah Jarvis
• 
  Sam Levene
  Abel 'Chips' Abrams
• 
  Dane Clark
  Johnnie Pulaski
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  Peter Whitney
  Whitey Lara
• 
  Dick Hogan
  Cadet Robert Parker
• 
  Louis Adlon
  German Ensign (uncredited)
• 
  Iris Adrian
  Jenny O'Hara (uncredited)
• 
  Frank Alten
  German (uncredited)
• 
  Kirk Alyn
  Brazilian Gun Captain (uncredited)
• 
  C.E. Anderson
  Bearded Lieutenant Commander (uncredited)
• 
  Tod Andrews
  Ahearn (uncredited)
• 
  Louis V. Arco
  Submarine Commander (uncredited)
• 
  Warren Ashe
  U.S. Sailor (uncredited)
• 
  Hooper Atchley
  Lieutenant-Commander (uncredited)
• 
  Irving Bacon
  Bartender (uncredited)
• 
  Leah Baird
  Mother (uncredited)