Dr. Leonard "Bones" McCoy meets a former girlfriend when the Enterprise brings supplies to a remote archaeological survey group. Still attractive to McCoy, the woman's current appearance and her colleague hide a deadly secret, ultimately revealed as a tragedy of ecology.
A slick-talking salesman, attended by three dissatisfied customers, is rescued by a farm widow.
Mike and his girlfriend (Cynthia Pepper) test their love by agreeing not see each other for a week.
Joe Mannix is visited one night by Ken Gordon, a young police officer whose life Mannix once saved. Unfortunately, moments later Gordon takes a bullet meant for Mannix, fired by Victor Roarke, a criminal whom Mannix once helped capture.
A girl who receives a threatening phone call at the Hot Line Club ends up dead, and Kelly is the caller's next target. A hypnotist at the club named Margo is not who she seems to be.
