Why are we here, and what are we supposed to do about it? What started the Universe, and was it a mistake? Does God exist, and why does he seem so interested in our sex lives? After exploring the phenomenon of TREKKIES, filmmaker Roger Nygard takes on The Nature of Existence. As he roams the globe to the source of each of the world's philosophies, religions, and belief systems, Nygard interviews spiritual leaders, scholars, scientists, artists, pizza chefs, and others who have influenced, inspired, or freaked out humanity.