Can you identify this episode?

[awiltz2]

Here is an (rather silly) image of a scene from a TOS episode:

http://watchplayread.com/files/2010/01/star-trek.jpg

I've seen nearly every episode of TOS in the last 7 days, and I cannot identify the episode. It is killing me!

 

[Noname Given]

My best guess - The Changeling - from when Spock in mind-melding with the NOMAD probe.

 

[scotpens]

^^Yep, looks like that scene from “The Changeling.”

SPOCK: We are Nomad. We are complete. We are instructed. Our purpose is clear. Sterilize imperfections. (he lets go of Nomad) Sterilize imperfections. Nomad. Sterilize. Sterilize. Nomad, sterilize . . .
KIRK: Spock. Spock! Nomad! You’re in contact with the unit Spock. Stop! Stop!

 

[awiltz2]

You are all absolutely correct! It occurs at 34:29 in Season 2, Episode 3 "The Changeling."

Thank you all!

 

[Miss Lemon]

Ah, the famous Nipple Pinch. Looks like someone has been reading K/S slash...

 

[gomtuu20]

Clearly "The Changeling".