The High Chaparral (1967) : 3x9

Joanna Moore stars as the pretty head of a struggling freight company to whom smitten Buck Cannon not only offers his help but a proposal of marriage. Buck is swept off his feet by the down-to-earth Charly Converse, who hits town with her crew of wagons and drivers bent on building a freight-hauling business. Buck stuns everybody with his decision to take a wife. Pardee, Charly's unscrupulous competitor, makes a last ditch stand to run her out of town, and the business as well as Buck's romance undergoes a true test.