When Patrice Wymore , shown on the Hollywood set of the ABC - TV show 'F ' Troop , visits the troop , glamour comes to the frontier . Patrice plays the role of a beautiful singer who , through a misunderstafnding , is invited to give a performance at Fort Courage , home base of the goof - up cavalry troop . The episode is called " She ' s Only a Build in a Girdled Cage " .October 1965