Murphy is the sole survivor of his crew, that has been massacred by a German U-Boat in the closing days of World War II. He is rescued, and ends up at a forgotten mission station near the mouth of the Orinoco, and begins to plot his vengeance. He wishes to sink the U-Boat by means of any method imaginable to him, and sets about to make the courageous attempt, assisted by Louis, the administrator of the local oil company.
Peter O'Toole
as Murphy
Siân Phillips
as Hayden
Philippe Noiret
as Brezan
Horst Janson
as Lauchs
John Hallam
as Ellis
Ingo Mogendorf
as Voght
John Clifford
as German Submarine Crewman (uncredited)
Harry Fielder
as German Submarine Crewman (uncredited)
George Roubicek
as German Submarine Crewman (uncredited)
Bob Simmons
as German Submarine Crewman (uncredited)
