One of Kirk’s past loves, Janice, is dying.

But then she has a remote control that makes him freeze. A device like that would probably come in handy for her later, but we’ll never see it again.

They turn pink and trade bodies.

Apparently Janice is really jealous of Kirk because Starfleet doesn’t admit women as captains. Thankfully this is retconned in later Trek material. What’s with some of these Starfleet rules? No female captains? The death penalty for entering a restricted area?

Then Janice tries to kill Kirk.
“Believe me, it’s better to be dead than to live alone in the body of a woman.”
Alone? Who else would be in there with him?

But Janice can’t finish the job, and they go back to the ship. Janice tries to keep Kirk sedated.

Didn’t Chapel used to have a different hair color?

I think Uhura used to have a different hair color too.

It doesn’t take long for Janice to start acting obviously different than Kirk.

Kirk wakes up, but Chapel just thinks it’s Janice going crazy.

Bones and Spock realize something’s up, so they form a plan to find some evidence.

Bones runs some tests. 

Spock talks with Kirk. She is able to tell him about old missions, but Spock says those things are public knowledge. Well, then ask about more secret knowledge. Ask about this morning. And I thought the competing theory was that Janice was crazy…would she really look up all that information if she was just crazy?

Oh yeah, or you could just do that

They hold a little trial. It should’ve been pretty easy to figure out who has Kirk’s knowledge. It’s sad when this type of situation was handled better in a Get Smart episode.

All Janice can really say is that trading bodies is crazy.

Spock says what I think every time people in Star Trek act baffled by strange things: that they see all kinds of crazy stuff all the time.

Bones and Scotty join with Spock. Janice locks them all away and says they’ll be executed.

Chekov and Sulu decide they aren’t gonna press buttons anymore.

Janice FLIPS. OUT.

Kirk starts to return to his body for a second. At first it seemed like it had something to do with Spock touching her neck, but it happens later when Spock isn’t doing anything. I guess he just wanted to touch her neck.

More flipping out

The only way to stop them from trading back their bodies is to kill Kirk.

After one more flipping-out scene they go back to their own bodies.