This is episode 21, aired September 13, 1952 on CBS Radio. Marshal Dillon is forced to amputate the leg of a settler on the prairie.  Dillon, US Marshall of Dodge City, believes that a man he has been looking for was in the cowboy camp on the north fork of the Canadian river near Dodge. Chester and Matt ride over to take a look. They find a man there with the right name but the wrong face.