“For the World is Hollow and I Have Touched the Sky”
Written by Rik Vollaerts
Directed by Tony Leader
Season 3, Episode 8
Production episode: 3×10
Original air date: November 8, 1968
Star date: 5476.3
With Spock in the captain’s chair, six archaic, sub-light speed missiles are headed straight for the Enterprise. Kirk quickly takes command (where was he, exactly?) and orders the missiles destroyed. Easy enough, but where did they come from? Sulu plots a course to the missiles’ origin to answer just that question.
Meanwhile, Dr. McCoy and Nurse Chapel are having it out in sickbay. Kirk arrives just in time to break up the fight–but Chapel looks sad, not angry, and McCoy asks her to leave. Kirk notes tactlessly that that “was quite a scene” (lack of subtlety will be a hallmark of this episode) and wants to know what the emergency is:
MCCOY: I’ve just completed the standard physical examinations for the entire crew. [...] The crew is fit. I found nothing unusual, with one exception.
KIRK: What is it?
MCCOY: Xenopolycythemia. It has no cure.
MCCOY: He has one year to live.
KIRK: Who is it?
MCCOY: The ship’s Chief Medical Officer.