Episode Title: "FRIDAY'S CHILD"
Production Number: 32
Original Air Date: 12-01-67
Stardates: 3497.2, 3499.1
The U.S.S. Enterprise arrives at Capella Four to negotiate a treaty with the large, warlike natives on the planet to mine the rare mineral topalime -- vital to the life support systems of planetoid colonies -- but Captain Kirk's landing party finds that a Klingon agent already is with the Capellans bargaining for mining rights.
Captain Kirk meets the Tier AkaAr, leader of the ten tribes of Capella, and tells him the Federation respects the freedom of worlds while the Klingon Empire is made up of conquered worlds. But a Capellan named MaAb, who supports the Klingon, leads an attack and kills AkaAr, becoming the new Tier. MaAb prepares to kill EleEn, the pregnant young wife of AkaAr whose child would become the next Tier, but Kirk's landing party helps her escape from the village.
The U.S.S. Enterprise is called away from Capella by a distress call from the Federation freighter S.S. Dierdre, then by the U.S.S. Carolina, but Lt. Commander Scott determines that the messages were faked and returns to Capella, where the Enterprise is challenged by a Klingon warship.
In a remote cave on Capella Four, Dr. Leonard McCoy delivers EleEn's child, while Captain James Kirk and Commander Spock fight off MaAb's warriors and the Klingon. The Klingon decides to attack the Federation officers on his own, and when MaAb challenges him, the Klingon kills him, before being killed by one of MaAb's men.
EleEn's son, named Leonard James AkaAr, becomes the High Tier, and acting as the Tier's regent, EleEn signs a mining treaty with the Federation.
Factoid: The kleeat -- a bladed throwing weapon that is lethal up to 100 yards -- is the basic weapon of the Capellans, in addition to swords and knives.
Factoid: Dr. McCoy was on Capella Four for a few months, but the natives showed little interest in medical aid. They believe only the strong should survive.
Dr. McCoy: "Because I'm a doctor, that's how I know."
Dr. McCoy: "Look, I'm a doctor, not an escalator!"
Guest Characters: Lt. Leslie
Alien Races: *Capellans, Klingons
KEY: [brackets]=illusions *star=first appearance