Captain Kirk visits a paradise-like planet populated by Native Americans.
This is reasonably good episode with a solid sci-fi concept and some decent character moments for Kirk, Spock and McCoy.
The plot is relatively enjoyable if you can get over the premise of the Native American planet. I'm guessing this was a cheap way of placing Kirk in the midst of a different culture. His scenes in a relaxed environment juxtapose well against the stress-ridden, overworked Enterprise crew battling with the planet bound asteroid. The idea regarding the Preservers and their technology is excellent and it is quite an important concept within the Trek universe.
It has to be said that the stereotyping of Native Americans as ignorant savages is as bad as you would expect from 60s television, and there is many a contrived moment as the story unfolds.
Although William Shatner strays over the top in a few scenes, this is generally a good Kirk episode. It is nice to see him away from the stress of command and briefly experience a bit of personal happiness. His romance is up to the usual Star Trek standard, but at least in this episode the falling in love takes place over what feels like a plausible length of time.
Leonard Nimoy and DeForest Kelley are on good form as ever embodying pure logic and humanity as Spock commands the Enterprise and faces a number of difficult decisions.
Scotty is okay but feels a bit more of a caricature here as he continuously reacts humorously to the demands placed on his engines.
It ends on a fairly downbeat note that is quite touching, well acted, but ultimately very convenient for the character of Kirk and his place on the show.
Visually everything works well, particularly the remastered edition with the new asteroid effects. The cinematography is good, along with the general art design.