As Devin's leg worsens, Sara faces a terrifying choice. Brigham Young makes Bridger an offer. Abish delivers a stark warning to the Shoshone.

Cast: Taylor Kitsch, Tokala Black Elk, Alex Fine, Derek Hinkey, Jeremy Gauna, Kip Weeks, Mikandrew, Bodhi Rader, Kaius Eteeyan, Nanabah Grace, Chris Martin, Brannon Cross, Ron McLamb