"The Tholian Web"
Airdate: November 15, 1968
65 of 80 produced
64 of 80 aired
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Introduction
The Enterprise finds another Constitution-class starship, the Defiant, adrift. Once aboard, it appears that the crew murdered each other. The Defiant itself seems to be phasing in and out of existence. Captain Kirk stays behind to give the rest of the away team time to escape the Defiant as it fades out of this dimension. Now in command, Spock believes they have one chance to save the Captain, but now standing in their way are a new enemy, the Tholians, and a powerful weapon. Will the Enterprise find a way to save the captain and themselves?
I don't know how to save him, nurse... there's no place to tear his shirt off!