The Church of Jesus Christ of Latter-day Saints is one of America's fastest-growing religions and, relative to its size, one of the richest. Church membership is 12 million people worldwide, a credit to late LDS President Gordon Hinckley, who died on January 27, 2008. This four-hour documentary brings together FRONTLINE and AMERICAN EXPERIENCE in a co-production that provides a searching portrait of this fascinating but often misunderstood religion.