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.
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.
Max tries to find the KAOS agent who framed him for bank robbery.
At U.N.C.L.E.'s secret training facility on an uncharted island, Illya has only 12 hours to solve a murder committed by an U.N.C.L.E. agent.
A most prickly diversion. Scott has fallen in love with a radical expatriate, Robinson disapproves, Scott resigns. Her cell leader welcomes discord; she is murdered, Robinson is blamed.