An Unfamiliar Tune A Man Called Shenandoah : Season 1 Episode 30

When Shenandoah arrives at a Western town whistling a tune from his lost past, he is confronted by the lovely Nancy Pruitt. She insists that she knows the tune and that his name is Dan Lawson, her former boyfriend. The only problem is that she is now married to Jason Pruitt, who is twice her age and ten times as jealous of any man who even talks to her.