Successful sea captain James McKay (Gregory Peck) travels to the American Old West to join his fiancée Patricia (Carroll Baker) at the enormous ranch owned by her father, Henry Terrill (Charles Bickford), referred to by all as "The Major." Terrill has been feuding with Rufus Hannassey (Burl Ives), the patriarch of a poorer, less refined ranching clan, over water rights in the arid grazing lands of the high plains.