An unabashed
10
I really liked this one. And that's how to do a Trek A/B plot - BOTH in service to the same story.
The only predictable truly thing to me was that is was pretty blatantly obvious Una was a Illyrian early on. You could see that coming from a mile away.
My other minor nitpicks:
- Seems VERY easy to get past a 'classified' Star Fleet lockout. If all you have to do is be the appropriate rank, and state "Override"

- I mean IF the Computer already knows who is making the request, and they have appropriate rank; why the need to state 'classified' if it the lockout can be so easily overridden?
- IF Hemmer could use the Transporter to lock onto, and beams up a piece of the planet's
mantle - they SHOULD have been able to beam Pike and Spock back earlier as well.
(And no...the Transporter as a method of life suspension doesn't bother me as hey, if Montgomery Scott could jury rig a 23rd century era transporter on a Cargo ship as a way to keep himself alive for 80 years - which he will do in the nest 30 years or so

- yeah, M'Benga as a doctor should be able to leverage his medical transporter in a similar fashion; but yes his method isn't quite as good/stable, since it requires him to rematerialize the patient periodically.)
In the end, I really LOVE that they show all they characters as real human beings, with faults, real secrets and honest/good and emotional reasons as to WHY they are keeping their various secrets. These are things that were 'adjusted out' of the characters in TNG, and why I really prefer the TOS era (and TOS) over TNG and the majority of Berman era Star Trek (for me both DS9 - in its later seasons and ENT tried to get back to and show that aspect of humanity still existed -- but TNG? No, not really.
And here was a story about prejudices and why they are detrimental that didn't overly hit you in the face with the fact that it was the emotional core of the story. All the characters actions and motivations made sense and didn't come across as contrived just for this week's story beats.
I also that they continued the 'prejudice' theme of the episode even on the B Plot on the Planet. Pike and Spoke of course assumed the ionic entities were out to hurt them because they were scared as they HAVE seems alien 'monsters' out to get them, and 8 times out of 10 that's the best thing to assume - but yeah in the end, they were benevolent and just out to try and keep both of them alive.
So yeah, a
10 from me for this one.
(Which surprises even me as I usually like the more action oriented stories more than the 'morality play' type stuff, but this one struck a nice chord with me.)