"The Trouble with Tribbles"by David Gerrold
Oh, the snark is strong with this one!
The cold open starts with an info dump. The Enterprise is heading to Station K7, near a planet (Sherman's Planet) that's disputed by the Federation and the Klingons. Under terms of the Organian Peace Treaty, one side or the other must prove it can develop the planet most efficiently. It could *almost* be a regular episode (even with Spock's shut down of Chekov).
But that's just a scaffolding for the gradual escalation of crazy, as one tribble becomes a dozen, then several dozen, then are all over the bridge, and finally all over the ship and the station. I love the slow decline of the situation.
Baris is gloriously self-important and annoying. Koloth actually doesn't seem to want trouble, but his officer Korax (possibly drunk) starts one of the best bar fights I've ever seen. Scotty just wants to read technical journals and ends up defending the Enterprise's honor. Cyrano Jones has wonderful banter with the barman and I adore how he deftly navigates himself and his drink through the fight. Uhura's delight with the tribble is adorable, as is her exasperation when Kirk puts several in her arms and tells her to clean up the ship.
So many wonderful scenes and lines! It's quotable and no matter how many times I've seen it, I still found myself laughing out loud.
KIRK: I have never questioned the orders or the intelligence of any representative of the Federation... until now.
SPOCK: (stroking a tribble) A most curious creature, Captain. Its trilling seems to have a tranquillising effect on the human nervous system. Fortunately, of course, I am immune to its effect.
(Everyone stares, not buying that. He suddenly realises what he is doing, and puts it down.)
KIRK: I was not aware, Mister Baris, that twelve Klingons constitutes a swarm.
MCCOY: Do you know what you get if you feed a tribble too much?
KIRK: A fat tribble?
KORAX: Kirk may be a swaggering, overbearing, tin-plated dictator with delusions of godhood, but he's not soft.
MCCOY: Does everything have to have a practical use for you? They're nice, soft, and furry, and they make a pleasant sound.
SPOCK: So would an ermine violin, but I see no advantage in having one.
Nimoy, Kelley, and Doohan all have some terrific scenes in this episode, but Shatner... once again, he blows me away. He disdain for Baris; his growing frustration; his face when he realizes Scotty didn't defend him, just the ship; and, of course, his expressions when the tribbles are falling on his head (thanks to DS9, I found myself picturing Dax and Sisko tossing them at him).
I also love him in the entire last scene, dealing with officers who *really* don't want to tell him what they did with the tribbles!
A brilliantly fun and funny episode that let's Shatner show off his comedic timing and expressions beautifully.