The Eye of the Beholder (Star Trek: The Animated Series) stardate 5501.2, the USS "Enterprise" investigates the disappearance of a scientific team near Lactra VII. The starship "Ariel" is located there, abandoned, with its captain having transported to the planet's surface. The "Enterprise" crew beams down to discover a series of unusual environments. On the planet the crew meets the Lactrans, a group of twenty foot slugs with intellectual capacities far beyond their own. Science Officer Spock senses that they are telepathic but communicating at a rate of speed far too fast for the Vulcan to comprehend. The team is captured by the Lactrans to be made part of a
Mirror, Mirror (Star Trek: The Original Series) a Mirror, Darkly", which is a sequel to the Original Series episode "The Tholian Web", reveals the fate of the USS "Defiant". The Mirror Universe played a large role in of "" and was visited in "Despite Yourself", "The Wolf Inside", "Vaulting Ambition", and "What's Past Is Prologue". For the franchise's 30th anniversary, "TV Guide" ranked "Mirror, Mirror" No. 3 on its list of the 10 best "Star Trek" episodes from all series. Mirror, Mirror (Star Trek: The Original Series) "Mirror, Mirror" is the fourth episode of the of the American science fiction television series "". Written by Jerome Bixby