Cullen awaits the birth of his baby; Durant must deal with the fallout following a railroad accident.
As Cullen plans an exit from Fort Smith, he challenges The Swede; when a new adversary arrives, Cheyenne feels his presence.
Cullen goes back to work on the railroad and butts heads with his new boss. Durant and Campbell battle over a valuable piece of real estate.
Cullen deals with trouble at home as he takes railroad matters into his own hands. Campbell makes a move against Durant and Mickey.
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.
