operation annihilate be the final episode of the first season . it be an interesting episode for a variety of reason . i like how the show take time to explore kirk personal life outside the federation . more important and the program explore how personal feeling affect command choice . kirk go bunker when he find out his brother be kill by some strange look creature . i wish the story would have spend more time on kirk and his family ( his nephew come aboard the enterprise ) but the original tv series never show much enthusiasm for that kind of thing . but there be enough glimpse of kirk life outside the enterprise to make the program interesting . a big part of the episode be film outside soundstages and the open space be a nice touch .