The Lost Patrol

During World War I, the young lieutenant in charge of a small British mounted patrol in the empty Mesopotamian desert is shot and killed by an unseen sniper. This leaves the sergeant at a loss, since he had not been told what their mission is and has no idea where they are. Riding north in the hope of rejoining their brigade, the eleven remaining men reach a deserted oasis where they find water, edible dates, and shelter.