Catherine and David have grown up together in Lexington, MO. In 1869, just as they realize their childhood friendship has grown into love Catherine's stepfather moves her family west by wagon train. David gives Catherine a gold half-heart necklace to remind her of his love and their future plans. He keeps the other half of the heart, and when he comes to find Catherine in two years, they will join the gold heart as their hearts are joined in marriage. Situations occur which test the strength of their love and their faith in God. Disaster haunts Catherine and her family, breaking her heart with sorrow. The theft of her heart necklace adds to her grief as she now has no tangible proof of David's love. A change in plans takes her family to Kansas as they settle near Dodge City.