Cheyenne is asked by Amarillo Ames to help drive his herd to Dodge City and take over if he dies but he doesn't want to tell the men or his daughter why. Ames dies so Cheyenne is forced to take over by force as he overcomes multiple foes.
Cheyenne rides to town and runs into two of the Laverson brothers. After defending himself, he kills one and sends the other packing. Heading to the job that brought him here, he sees Amarillo Ames who wants to hire him to drive his cattle to Dodge City, with the promise of lots of money for the one who gets there first. Cheyenne has trail drive experience but the men don't. Ames' ranch is in debt and he needs every dollar to pay it off. Ames wants Cheyenne to take over if something happens to Ames who took a bullet in the lung but doesn't want to tell his men or daughter. He gives Cheyenne a letter stating his wishes. After Ames dies on the trail by drowning, Cheyenne must prove himself to the men who don't believe that Cheyenne was put in charge before they left if anything were to happen to their boss. The letter was washed out when Cheyenne went into the water after Ames. It all comes to a boil when they reach Dodge City, ahead of schedule, and Cheyenne must deal with the ...Written by