A World War II story set in an unusual location—Venezuela—follows a lone survivor of a U-boat attack on the Orinoco River, played by Peter O'Toole, who is Irish. After being cared for at a Quaker mission, he sets out to hunt down and kill the German soldiers responsible. Sian Phillips portrays the Quaker doctor, Philippe Noiret acts as a friendly local resident, and Horst Janson takes on the role of the German captai…