Elizabeth Randolph is a newly baptized member of The Church of Christ of Latter-day Saints. She has left all she knows behind in Boston, Massachusetts to become a teacher in a one room schoolhouse in Grays Lake, Idaho. Elizabeth struggles to adjust to her new home and is starting to succeed when Alex Cannigan, an embittered, former soldier wounded in a battle in the First World War, crosses her doorstep.
Elizabeth attempts to help Alex overcome his pain by teaching him about God. As trust slowly develops between the two, a devastating pandemic sweeps the world killing millions. Alex and Elizabeth both learn that the only way to pull them from the darkness to follow God into the light.