Jacob and his crew eagerly await Spencer's return at the train station. Teonna has a fateful run in. Alexandra braves the cold.

Jacob, Cara, and the Duttons go into town to take care of some business, and pleasure. Spencer and Alexandra decide they won't waste any time, and later find new danger. The Duttons realize the feud with the sheepherders is far from over.

In the wake of the attack, Cara and the Duttons carefully plan their next move. Spencer and Alexandra enjoy the pleasures of Zanzibar, unaware of what has happened back home. Banner Creighton seeks a powerful ally.

The feud between Whitfield, Banner, and the Duttons reaches the point of no return. Spencer and Alexandra encounter a different kind of peril on their passenger ship home. Marshalls track Teonna, who finds a rare respite of hope.

Spencer and Alexandra begin their long journey back to Montana. Banner and Whitfield plot their next move to control the valley. Teonna goes to great lengths to secure her freedom and safety.

Jacob quashes a dispute between cattle ranchers and sheep herders. Cara informs Liz of the sacrifices of marrying into the Dutton family. Meanwhile, another Dutton finds himself far from home.

Jacob and the Yellowstone cowboys save one of their own before deciding their next move. Teonna continues to endure at the hands of Sister Mary. Cara and Emma discuss Elizabeth and Jack. Alexandra makes a bold decision.

The winter brings new challenges and dangers for the Duttons. Meanwhile, Spencer and Alexandra set off on separate journeys.

In the wake of the tugboat crash, the next step in Spencer and Alexandra's fate is revealed. Cara and McDowell begin hiring new Livestock Officers. Teonna covers her tracks as Marshalls come looking. Jacob gains strength.

Banner Creighton is met with a surprise, as the feud with the Duttons takes an unexpected turn. Captain Shipley says his goodbyes to Spencer and Alexandra as the next leg of their journey commences. Teonna continues to fight for her safety.