Cullen awaits the birth of his baby, laboring under The Swede's thumb at Fort Smith. Durant deals with the fallout from a railroad accident.

Cullen challenges The Swede as he plans his exit from Fort Smith. A new adversary arrives and makes his presence felt in Cheyenne.

Cullen returns to Cheyenne. After being considered dead his return is a shock for many. Bohannan meets a few old friends and makes new enemies whilst trying to get his old job back from Durant.

Cullen attempts to find a way for the railroad to pass over the mountains for Durant. As a Mormon, Naomi has her own struggles settling into Cheyenne. Brother Hatch continues to suspect the Swede of fraud and murder.

The arrival of a dangerous stranger stirs up old feelings in Cullen and puts his family at risk. The Swede faces consequences at Fort Smith.

We follow Bear Killer (Elam) as he is cared for by the Comanche after a bear fight. He becomes part of the tribe as they attack incoming blue coats. Bear Killers growing confusion forces him to seek out the railroad.

Durant seeks revenge for his attack. Bear Killer (Elam) returns to Cheyenne trying to sell the female slaves he has. Due to Campbells presence, Cullen and Eva attempt to convince Elam of where he is and what will happen if he sell slaves.

Naomi's unrest forces Cullen to take her and William back to the Mormon settlement at Ft. Smith. Campbell deputizes several undesirables in response to the deaths of his Marshals. The Swede is forgiven for his wrong-doings.

Cullen attempts to make a stand to free Durant and the rest of the prisoners after Campbell decides to transport them back east. The only thing standing in his way is Snow and his men.

Cullen, Durant and Campbell come together in order to discuss a means by which to provide protection to the citizens of Cheyenne. They must return a sense of well-being to the town after a disturbing act of violence takes place.

Cullen and Durant work together to save the life of a criminal; Louise supports Ruth as she copes with a loss.

Ruth is determined that her fate is sealed. Her trial gives her two possible outs, both of which she dismissed. Cullen provides his accurate detail as police officer, detailing that she'd only protected him and the general population from the murdering swine she shot down. Even John Campbell suggests a stay, saying that she is not thinking clearly. Ruth remains steadfast in sealing her own fate, and even growing closer to Bohannan during an all night vigil in her jail cell does not shake her from her decision. The morning comes, and Campbell asks Cullen to read the death warrant. He stalks out, wanting no part of it. Ruth begs him to attend her hanging, to be with her in the end. 13 steps up to the noose. Ruth looks to the crowd, hoping that Cullen will he there. He arrives late, but too late to stop Ruth from her fate. She smiles a small smile of contentment, just before the hood is placed over her head. Written by saunterr44

As the railroad prepares to leave Cheyenne behind after Sherman Peak; Cullen returns to Fort Smith to get his family.