On the run evading certain death, an enigmatic old colleague of Bohannon’s stirs trouble when he suddenly shows up in Cheyenne. Brigham Young arrives at the Mormon compound to investigate the Swede. Mickey seeks revenge.
Facing the noose for murder, Ruth’s life hinges on desperate efforts to save Sydney’s life. Ruth recalls memories of her father from childhood. Mickey’s cousin arrives to help fend off Campbell’s men – by any means necessary.
Cullen returns to the Mormon Fort only to discover it abandoned following a brutal smallpox epidemic. Desperate to find his lost family, Cullen wrestles with a difficult decision when he is poached by the Central Pacific Railroad.