Bonanza - Season 12 Episode 8

Ben's new horse throws him down a steep slope, injuring his back. Joe tries to round up some help, but the settlers in the valley live in fear of the devious owner and his hired help. Joe goes for help from a man named Thornton, but he is wounded by the lowlife cowboys, and has no choice but to ask them for help. A very imaginitive and visually creative dream Ben has of Joe calling out to him and falling beside him, before waking up and realizes he has just had a terrifying nightmare.