To the east of the Arabian desert, an ancient culture developed; and it attainted the sophistication of its civilized neighbours in Mesopotamia & Iran. The extreme aridity of the spot, combined with the strictness of religious prohibitions, discouraged archaeologists for a long period of time. Only recently, a group of French scientists initiated a large-span excavation. Their aim is to comprehend how this society succeeded to prosper, despite a natural environment so hostile to any conditions of life. The answer seems to be the refinement of a revolutionary, water management technique. Yet beyond such technical prowess, this documentary provides a unique look to discover a unique way of life; but also the pre-Islamic religious beliefs of this milieu.