At the time of the construction of the original Nauvoo Temple, the Prophet Joseph Smith, Jr., the founder of The Church of Jesus Christ of Latter-day Saints, commissioned the construction of a tomb for his family.
 

Joseph Smith was never interred in the tomb, and the location was lost. The documentary explores the possible locations where it could have been, and uncovers the history of the Church around the period just before and after the Prophet's death.