The High Chaparral - Season 1 Episode 25
The Peacemaker

Billy Blue Cannon quits the ranch after a quarrel with his father and leads a peace representative of the President to Cochise. On the trail Blue falls in love with Kellys adopted Apache daughter, Moonfire. Kelly, an idealistic dreamer, meets Cochises demands for a strip of land separating the High Chaparral from Tucson. This would cut the Cannons supply route and threaten them with bankruptcy. John, angered by the peace terms and his sons choice of a wife, prepares to defend the ranch against the Apaches.