The Rifleman had a couple of episodes, one with a wounded confederate,, blandon(?) I think was his name, and his shoulder wound was so horrible that Mark McCain ran away in fear/repulse when he saw it,, then Phil Sheridan rode in, and gave an impassioned speech about war and reconciliation to the confederate, then helped him.
Another was when 2 confederates that spent 2 1/2 years in a union prison,, happened upon lucas and recognized he was a union lieutenant in the war, so they took him prisoner and put him into a small cage, intent on keeping him incarcerated for 2 1/2 years as they had been. Fortunately both episodes had happy endings, and Lucas was ok,, allowing the series to continue for a couple more years