The episodes are being presented in order of numbering. The airdates are in a slightly different order.

Episode Title: 'Day of the Dove'
Synopsis: "Kirk and his crew do battle against the Klingon leader Kang and his crew, before they realize that an alien being has set them against one another so it can feed off their hostile energies."

Episode Title: 'Plato´s Stepchildren'
Synopsis: "The Enterprise arrives on a mercy mission to help an aristocratic race with telekinetic abilities, which they use to manipulate the crew in an effort to force them to leave Dr. McCoy behind so he can take care of them. Eventually they force Kirk and Uhura to engage in television's first interracial kiss, but Kirk discovers the source of their powers and fights back with the help of one of the race's own social misfits."

Episode Title: 'Wink of an Eye'
Synopsis: "After receiving a distress call, Kirk and several landing party members beam down to a planet which is apparently populated only by insects, but after drinking the water, they find themselves accelerated in time so that their crewmates cannot see them. The Scalosians desperately need males for breeding stock, but the accelerated metabolism causes early death, so while McCoy and Spock ponder the mystery of what happened to their captain, Kirk struggles to stay alive long enough for a cure to be found."

Episode Title: 'That Which Survives'
Synopsis: "A holographic woman desires to touch the men on the Enterprise and on an away team, but her touch causes death, so Kirk must discover the source of her fatal images."

Episode Title: 'Let That Be Your Last Battlefield'
Synopsis: "Two men who are white on one side of their bodies and black on the other, but on opposite sides, come aboard the Enterprise and involve the crew in their racial civil war."

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Keeper of the Jabberwock

Well, I liked Plato's Stepchildren. The comeuppence scene made it acceptable.

That Which Survives was fairly suspenseful for most of the episode, if not somewhat predictable at the same time.

Battlefield was a bit sledgehammerish once the moral was revealed(especially the ending) but it was an interesting take on the blindness that occurs with stereotyping on the basis of appearances.

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Keeper of the Jabberwock

Yes battlefield was outstanding. Sure it is a giant morality play, but given the context that the episode was shown it was an extremely brave move by the makers of the show, and presented Science Fiction at its best - questioning the human condition

What a delightful way of phrasing it!

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Gillian

"Now everyone was giving her that kind of look UFOlogists get when they suddenly say, 'Hey, if you shade your eyes you can see it is just a flock of geese after all.'"

"You can't erase icing."

"I can't believe it doesn't work! I found it on the internet, man!"

"The Black and White Cookie Episode"......"Isn't that in the Southern Part of the Galaxy..???" Classic Rodenberry baloney...(In an Astronomical sense...)

Dale in Ala

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"Ad astra per aspera"