Whether serving as messengers of God or Satan, angels have served in mythology as the messengers to humans, often winged and semi-divine. From the good angel Michael to the fallen Satan, many aspects of the myths and legends that feature angels are examined in this original A&E documentary. Devout believers give their reasons for putting faith in the existence of these intermediaries, while skeptics provide an alternate viewpoint. Faith and science are both given voice, with often surprising results, as legends and scientific pragmatism illustrate the role angels have played throughout history in the culture and private lives of people everywhere.