Bonanza S09 E27 In Defense of Honor

"America's Favorite TV Western"

Davey - a orphaned Yute that Ben helped raise and has worked as a ranch hand on the Ponderosa - falls in love with one of his own. A fellow Yute's jealousy over the blossoming relationship, and later his murder jeopardize a treaty between the white man (which Ben has helped negotiate) and the Yutes.