After capturing Dr. Anderson, a skilled Allied physician, Dietrich turns over his staff car in a ravine (during a blinding sand storm). Troy wants to attempt to rescue the doctor but can't because of the storm. He hears Dietrich's distress call but suspects it is a trick. Ultimately, they try as they hear that the Germans will do the same. They get Dr. Anderson, who is unhurt, but Dietrich is trapped under the car and badly injured. The doctor tells them that Dietrich is dead, but the German groans just before the Patrol leaves. When Troy ends up saving Dietrich's life, the doctor is about to kill him with a lethal dose of morphine. Dietrich tells Troy that Anderson is a double agent who gets killed just as the Germans arrive to help their captain.