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 returns to work on the railroad, and clashes with his new boss; Durant and Campbell battle over valuable real estate.
Cullen is in trouble at home after he takes railroad matters into his own hands. A move against Durant and Mickey is made by Campbell.