Set just before the American Civil War, this series presented a highly fictionalized account of the heyday of the Pony Express.

Season three of In Search Of starts with UFO Captives and meeting people who believe they have been held captive aboard alien spacecraft - close encounters of the fourth kind. In the 23 following episodes host/narrator Leonard Nimoy poses innumerable questions while the series' production staff works to provide the answers. The producer's purpose was to suggest some possible explanations, but not necessarily the only ones, to the mysteries that they...