Set in the post-Civil War era, the story follows Buck, a trail guide for a group of freed slaves seeking to settle and start anew in the West. The settlers face constant threats from mercenaries hired by Southern plantation owners intent on returning them to labor in the post-emancipation South. Buck is strong-willed and determined to protect his people and ensure they reach their promised land. During their travels, Buck crosses paths with a conman known as the Preacher, who initially targets him as a potential victim for his schemes. However, when the caravan faces imminent danger, Buck sees an unexpected ally in the Preacher, as they form a reluctant partnership to outwit the mercenaries.

As the unlikely duo navigates treacherous territory and adversaries, they bond over their shared struggles against oppression and develop a mutual respect. Alongside Buck's loyal wife Ruth, they lead the convoy through harsh environments while fending off attacks. The group's journey is further complicated by internal tensions as fear and mistrust spread among the travelers. Tensions rise higher when resources start running low and tempers flare. Amidst the chaos, Buck, the Preacher, and Ruth strive to maintain unity and hope. Their ultimate challenge tests their courage and resolve as they confront both external enemies and personal demons on their quest for freedom and prosperity, as they continue deep into unknown lands.