A complete and unique record on film of the greatest event in the Moslem world. The annual pilgrimage of Muslims to Mecca is one of the world's most celebrated religious observances. But Mecca is barred to non-Muslims, who have very little idea of what the event is really like. There are, too, many Muslims who cannot perform the pilgrimage and who know about it only from hearsay. This film, made with the permission of the Saudi Arabian Government, is the first complete record of this ancient and still vital expression of religious faith.