The episode begins when an Arapaho Indian brave named Yorky is sneaking into a corral of horses. It appears that the intent of the Indian is to steal the horses from a man known as Brant. Because of some precautions that was set up by Brant and his son they hear the commotion and come out shooting. Brant manages to shoot the Indian in the leg before the Indian rides away.
Later Mr Seldon comes to the Marshal's office in Dodge. He tells the Marshal that he found what he thought was an Indian boy shot in the leg and unconscious. But to his surprise the Indian boy is really a white boy that had been captured by the Arapaho's years ago and is now part of the Indian Reservation outside of Dodge.
Matt rides out and performs a little surgery (since Doc is out of town) and gets the boy back on his feet. He take young Yorky back to Dodge where he seems to be fitting into life in civilization better than expected. But then we learn why Yorky was pretending to like city life plus we also find out why he was taking the horses from Brant.
The story actually had a twist that made the plot interesting. Perhaps it was the video version that I watched but this episode played like a 1930 talkie movie. There was dialog and then a lot of dead air where all you could hear was the crackling of the recording system. No music or sound effects tying the two scenes together. The dead air seemed to make this episode rather plain or common. But the circumstance of Yorky prevailed making this a nice watch for viewers.