Lately, Spock's behavior has been increasingly and unprecedentedly erratic. When McCoy finds it to be a growing medical risk, Kirk drags the truth out of him: it is the 'blood fever', the one time in a Vulcan's life he regresses to a primitive, hormonal state of mind, setting out to mate for life. He is granted the first request for shore-leave in his entire career to go to Vulcan, asking Kirk and McCoy to join him in his equivalent of a marriage ceremony with his since-age-seven arranged fiancée, T'Pring. But, once on Vulcan, T'Pring halts the matrimony by calling the ancient challenge, whereby a champion of her choice will fight Spock for her. Surprising all, she selects Jim Kirk. He accepts after due consideration only to find, when the first of two dueling weapons are handed out, that the fight is to the death - too late to decline in front of T'Pau, the presiding top official for Spock's family and the most powerful of all Vulcan dignitaries. Written by
Did You Know?
As the first episode aired in Season 2, this segment debuted the new second season opening credits. DeForest Kelley's name was added to the "starring" cast and the theme music was extended and had a female soprano voice (Loulie Jean Norman) and percussion added to it. See more
After T'Pring chooses Kirk to be her champion, Kirk and McCoy are speaking with T'Pau. If you look in the background, you will see Leonard Nimoy
standing against the wall with his hands behind his back, apparently unaware that he is on camera. Spock is supposed to be off in the corner, deep in the blood fever. See more
If you don't get him to Vulcan within a week, eight days at the outside, he'll die. He'll die, Jim!