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.
Kirk meets Khan, a leader of Earth's Eugenics War.
A jealous husband, an angry wife, a frustrated agent and a lodge full of competitors are suspects in a champion skier's death. With Angela Lansbury, Barry Newman, Emma Samms and Bo Svenson.
Tipped off by a crazed runaway who is far more than he seems, Kirk investigates an experimental facility at Tantalus II for mentally ill criminals and finds a sinister scheme behind its amazing research.
