The Enterprise is transporting several diplomatic delegations to a conference on Babel regarding the future of the mineral-rich planet Coridan. Among the passengers are Spock's parents, Ambassador Sarek and Amanda. There is obviously a chill between father and son owing to Spock's choice of pursuing a career in Starfleet. Unknown to Spock or his mother is the fact that Sarek is seriously ill. There is also much tension among the delegations and a spy on board is transmitting coded messages to a ship that attacks the Enterprise. With Captain Kirk wounded in an earlier knife attack, Spock is in temporary command just as his father needs a transfusion that only he can provide. Written by
Did You Know?
wrote the scene in which Amanda tells Kirk of the rift between Spock and Sarek. Writer D.C. Fontana
felt that it would be inappropriate for her to discuss this with someone she had just met. But Roddenberry wanted Kirk to be more involved with the story. See more
When Amanda is telling McCoy about Spock's childhood pet, she calls it a sehlat, which she pronounces "say-lot." McCoy immediately after repeats the name but pronounces it "sell-it," indicating the two scenes were shot separately without each hearing how the other said it. See more
[Captain Kirk is adjusting uniform in mirror, Dr. McCoy pacing behind him, tugging at tight collar
Dress uniforms - spit and polish. I don't know how much longer I'm gonna be able to stand this. I feel like my neck's in a sling.