A convict who has just escaped from Alcatraz Prison takes over a passenger ship. Two of the ship's crew hatch a plot to overpower him and rescue the ship's passengers.
Gail Patrick
as Dale Borden
Lloyd Nolan
as Raymond Grayson
Harry Carey
as Captain Glennan
J. Carrol Naish
as Steve Murkil
Robert Preston
as Robert MacArthur
Anthony Quinn
as Lou Gedney
Dennis Morgan
as First Mate Rogers (as Richard Stanley)
Richard Denning
as Harry Vay
Konstantin Shayne
as Murok
Eddie Marr
as Dave Carter
Emory Parnell
as Olaf
Paul Fix
as 'Nails' Miller