Enterprise desperately needs a mineral that can be used to cure a deadly illness. Most of the crew is infected. They go to a planet that has some, but the guy who owns the planet is in a bad mood.

But then he invites them into his house. He has paintings that Spock recognizes as authentic, yet undiscovered works of Da Vinci.

He introduces his student. She’s super smart.

She teaches Kirk how to hit a cue ball. Hey Kirk, isn’t your whole crew dying or something? No no, it’s okay, finish up your game of pool.

Some of the decorations on the wall look like a cave from an earlier episode.

There’s a robot that doesn’t like it when Kirk gets close.

Kirk and Spock stumble upon his secret robot room. His student is really a robot. He’s been trying to make a perfect mate.

It’s cause he’s really Leonardo da Vinci, and Brahms, and a bunch of other people, of course.

He presses a button and shrinks Enterprise…

So they fight!

She can’t choose between them…

So she just breaks. Typical robot.

Surprisingly, Kirk is really sad about the lady he left behind. Maybe they usually cut this scene out of the other episodes. Spock sneaks in a mind meld while Kirk’s asleep and makes him forget about the girl.