One of the busiest episodes of TOS—there’s so much going on, it could almost be a two-parter. As bironic said, the political intrigue gets completely overshadowed by the Spock family drama. It’s easy to forget that Sarek and Amanda appeared only once in TOS (not counting the movies, TAS, TNG, or the time Mark Lenard was a Romulan), because they’re such a huge part of Star Trek lore. And there is so, SO much Star Trek lore in this episode:
This is the episode to introduce Andorians (who bironic and I both agree are sexy) and Tellarites, not to mention little gold people eating technicolor marshmallows who clearly know how to party:
We learn SO much about Vulcan(s). “We come to serve”/“Your service honors us” originates from this episode, as does the finger touching, which Mark Lenard and Jane Wyatt came up with after a chat with Nimoy about Vulcan hand gestures. We hear more about Vulcan anatomy and Vulcan aging, and what a Vulcan child’s education is like. We learn about sehlats and tal-shaya.
And we learn a million things about our own personal Vulcan, like that he and his father have been estranged for 18 years, and it’s been four years since he even saw his parents, who, by the way, are total badasses. I mean, Sarek, oh my god: “Threats are illogical. And payment is usually expensive.” Even Spock is like “Yeah, my dad could kill a dude, no problem,” and at 102.437 “precisely, Doctor,” he repels that piggy Tellarite’s attack like he’s brushing crumbs off his jacket. And Amanda:
When you were five years old and came home stiff-lipped, anguished, because the other boys tormented you saying that you weren’t really Vulcan. I watched you, knowing that inside that the human part of you was crying, and I cried, too. There must be some part of me in you, some part that I still can reach. If being Vulcan is more important to you, then you’ll stand there speaking rules and regulations from Starfleet and Vulcan philosophy, and let your father die. And I’ll hate you for the rest of my life.
There are places in this episode where Sarek and Amanda’s marriage seems very paternalistic. Even Kirk calls Amanda out on it: “My husband did request it.” “It sounded more like a command.” This isn’t the first time that vaguely patriarchal weirdness has reared its head in Vulcan culture (see also “Vulcan marriage,” “Vulcan divorce”). That said, I read a comment to the effect that Sarek’s “controlling” behavior towards Amanda could be easily explained by the stress of the situation: he’s acting that way because of Spock. When they’re alone together, their conversation is much more equitable. And that explanation suits me.
In conclusion: FLYING BUTT ATTACK!!