Banner with a Strange Device - S1.E22

While the train is stopped in the town of Banner, where Calhoun is making a major business deal with town founder Big Jim Banner, Barnabas is attacked by Banner's son, who thinks Barnabas is one of the Claiborne boys with whom the Banners have a major feud. At first it seems to be a mistake, until Barnabas meets Jeff Claiborne, who looks just like him. Soon Barnabas, who was raised as an orphan, starts to believe that he may be a Claiborne as well.