Sisters of a Different Dawn is the tale of two women -- New Englander Sara Gray, daughter of a Methodist Episcopal minister, and an eastern Oregon Country Shoshoni, Umentucken. Both women strive to retain their individuality during a time when change threatens all that they had once believed to be truth. Set in the 1840s, Sara Gray and Umentucken have a common bond, Sara's brother Myram, who left their New England home years earlier to venture west as a trapper for the Hudson's Bay Company. Sara's own travels from Boston to Fort Hall in search of Myram are filled with adventure and hardships. Her biggest challenge, however, is Umentucken, as the women from two different worlds struggle to reach common ground.