The story flashes back to the Salt Lake Valley in Utah in 1847, where John Ferrier and a little girl named Lucy, the only survivors of a small party of pioneers, lie down near a boulder to die from dehydration and hunger. They are discovered by a large party of Latter-day Saints led by Brigham Young. The Mormons rescue Ferrier and Lucy on the condition that they adopt and live under their faith. Ferrier, who has proven himself an able hunter, adopts Lucy and is given a generous land grant with which to build his farm after the party constructs Salt Lake City. Years later, a now-grown Lucy befriends and falls in love with a man named Jefferson Hope.