[1][2][3] After an ambush by an Arab tribe, two surviving French Legionnaires return to their fort.

Edwards, is assigned a new patrol and a mission to alert another fort that an attack may be imminent.

Edwards' situation is further complicated when he catches his wife, Celie, in the arms of a lieutenant, Forbes.

Edwards disobeys orders and rides on, Forbes joining him in what he calls a suicide mission.

Almost making it back safely, Forbes, too, is seriously wounded and expires as Sgt.