This is one of 6 episodes of The Texan involving "The Railroad". Actors who play repeat roles in several of the The Railroad sagas include Alan Hale as "Scully', Duncan Lamont as "David MacMorris", and Kipp Hamilton as "Stevie Martin". The six Railroad episodes are: Showdown, Captive Crew, Buried Treasure, End of the Track, Dangerous Ground, and Quarantine.