They goofed about in "The Cable Guy" when Jim Carrey and Matthew Broderick fought each other at the Medieval Times restaurant. Wow!!! What a way to kick off the second season. Spock is in heat because he is in the midst of the Vulcan mating period and must return to his planet. Once there, Kirk and Spock are forced to battle to the death for the hand of Spock's chosen mate. The music that goes along with the fighting will be used in other episodes as well be recognized throughout TV history. Nimoy did a great job of playing a sexually frustrated Spock that allowed his human side to really show up.