To prepare for making these comics, I rewatch each episode. My wife, who hasn't seen most of them before, watches with me, while I scribble notes on ideas to put into the comic. Halfway through this one she commented, "It's like The Brady Bunch!"

After I stopped laughing, all my other notes went out the window.

Reading up on this episode afterwards, I was gobsmacked to find this on Wikipedia:

In an interview with Sondra Marshak, published in Star Trek Lives [...], Leonard Nimoy explained that when he complained about the script to producer Fred Freiberger, Freiberger said, "This script is going to be what 'Miri' should have been". Nimoy objected, calling "Miri" a beautiful, well-acted story, and felt that Freiberger's comments were as much as saying, "'Miri' was a piece of trash".

Wow. Even with its faults, "Miri" is ten times better than this episode.

Way to go, season 3. None from four, so far.

Transcript

1
{the planet Triacus}
Here's the story, of a starship captain
Who was checking out the Triacus outpost.
2
All the adults there were dead,
their kids singing,
McCoy: An adult-killing PLAGUE!
Kids: {singing} Ring around the rosie, pocket full of posy
3
Which summoned up a ghost.
4
Here's the story, of a foolish Vulcan,
Allowed those kids to beam up to the ship.
McCoy: Quarantine!
Spock: No.
5
{Enterprise bridge}
With their psychic
powers they took over,
6
{external shot of Enterprise}
And took them on a trip.
Caption: To Marcos XII
7
{arboretum}
Because one day when the kids get to Marcos XII,
8
{bridge}
All the people there they'll control with a hex.
Kirk: Argh! Must... over-act!...
9
And the ghost
will take over the galaxy.
10
It's just all a bit too much like Charlie X.
Caption: Video of kids playing with their parents
11
Like Charlie X, like Charlie X.
Kids: Waaahh! Waaahh!
Gorgan: {the ghost} Noooooo...
SFX: Vanish!
12
{9 sub-frames showing Spock, Kirk, and McCoy down the centre, flanked by three kids on each side}
It's all a bit too much like Charlie X.