Something is making Spock want to return to his home planet in an episode of the original Star Trek series that aired on this day in history.
“Amok Time” is the 1st episode of the 2nd season of the original Star Trek series. Written by Theodore Sturgeon and directed by Joseph Pevney, it first aired on NBC on September 15th, 1967.
In the episode, Spock begins acting unusual. It turns out he is the grips of the pon farr, the Vulcan urge to mate that strikes every seven years. When the Vulcan returns to his homeworld, he finds that he must engage in ritual combat with Captain Kirk or he could die!
The episode is perhaps best known for its iconic fight scene between Kirk and Spock, complete with the battle music composed by Gerald Fried. The scene has been referenced in many other TV shows and movies. The pon farr would be referenced or used as a storyline/plot point in other Star Trek series as well, such as Voyager and Enterprise.
Another notable fact about this episode is the first appearance of Ensign Chekov, as portrayed by Walter Koenig.