Buck runs into old friend Fargo Smith. He is working for freighter Charlene 'Charly' Converse who is very pretty but with the manners of a man. She is trying to win freighting business but her established competitor Ainsworth Pardee plays dirty. Upon returning to the ranch Buck can talk about nothing but her. Manolito and the Cannons ask him to bring her to the ranch as his stories seem unbelievable. She arrives racing Buck on horseback and proceeds to astound the family with her "manly" ways but Buck is smitten. Because of problems with Pardee, they decide she should stay at the ranch until they are resolved. During her stay Buck and her decide to wed. If she can ship freight faster than Pardee, she can win a contract to a nearby town. With no men available, Big John allows Buck to use the ranch hands to help her. Before the wagons roll, she overhears the men talk about her domination of Buck causing her to try to defer to Buck. Pardee tries to stop her in a narrow pass but Buck is ...