Jericho Coulter, the eldest of six fiercely devoted brothers, is entrusted with safeguarding his family and the secret that binds them together: the Sapphire mine. To keep tragedy from striking again, he allows no outsiders on their land. When two women stumble upon their ranch, claiming Jericho himself sent for one of them as a mail-order bride, he aims to send them straight back where they came from.

Six decades of history unfurl on a Wyoming ranch. Journey to untamed Wyoming where four generations of women experience love, loss, grace, adoption, struggles with the law, relationships with natives, and through it all, family bonds.

In 1837, Juniper Collins and her sisters are shocked by their father's final request in his will for a special set of beads to be returned to a Piegan Blackfoot woman he credits with saving his life during his travels west. Together, the sisters set out for the trapper rendezvous to find the woman, but their mission turns more daunting when they come upon the mass of men and lodges spread out in the Green River Valley.

Upon uncovering her tyrannical father’s malevolent plot to commit her to an asylum, Beth Rutledge fabricates a plan of her own. She will rescue her mother, who had already been sent to the asylum, and escape together on a wagon train heading west. Posing as sisters, Beth and her mother travel with the pioneers in hopes of making it to Idaho before the others start asking too many questions.

Invited by a friend to trek west and help establish the newly formed town of Cheyenne, Edward Vogel is prepared to leave the haunting memories of his wife and son’s deaths behind him. The only problem is the corrupt new railroad town wants family men who can establish law and order, and desperation leads Edward to his friend Marybeth with a proposition of marriage.