Sezona: 3Epizoda: 06Datum premijere: 20 September 1968Scenarist: Lee CroninRedatelj: Marc DanielsStardate: 5431.4 (2268)
Gostujući Glumci:Marj Dusay - Kara
James Daris - the creature
Sheila Leighton - Luma
KRATAK SADRŽAJ (preuzeto s Memory Alpha): Enterprise je napala izvanzemaljska sila koja je ukrala Spockov mozak, što dovodi Kirka i McCoya u očajničku utrku kako bi ga što prije vratili.Citati: "His brain is gone!"
- McCoy to Kirk, as Spock lies unconscious in sickbay
"No one may kill a man. Not for any purpose. It cannot be condoned."
- Kirk to Kara, as she points a phaser at him
"I should have never reconnected his mouth."
"Well, we took the risk, doctor."
- McCoy and Kirk, after Spock starts describing the culture of Sigma Draconis VIt

Transkript: chakoteyaViše informacija: Memory Alpha