We came to put you back.
Where are you?
Back where?
Back into your body.
We brought it
along with us.
Thoughtful, Captain,
but probably impractical.
While I might
trust the doctor
to remove a splinter
or lance a boil,
I do not believe he has
the knowledge to restore a brain.
Thank you.
No denigration
intended, Dr. McCoy.
That skill does not yet
exist in the galaxy.
The skill to remove it
exists right here.
Restoring it must
also be possible.
We've got
to get to you now.
Captain, I appreciate the risks
you're taking on my behalf,
but I must insist
they are worthwhile
only if there's a reasonable chance
for success.
How much time
has elapsed since--
18 hours and 12 minutes.
Dr. McCoy must've told you
That 24 hours
is the maximum
my body can--
I told him.
That leaves us exactly 5 hours
and 48 minutes, Spock.
It does seem too brief
to develop such skills,
does it not?
Yes.
Very brief.
That's why we must
get to you immediately.
Beam us a signal
to home in on.
Acknowledged.
[Beep]
Got it.
Bones.
Oh, Spock,
one question.
Yes, Captain.
We've got pain-giving
devices attached to us.
Tell us how
to get them off.
I shall give it
top priority.
Captain, I have
an answer for you.
It seems your pain bands
are manually controlled.
The red button on a bracelet
releases them.
I know that does not
make much sense.
Oh, yes, it does,
Spock.
Keep concentrating,
Spock.
Keep concentrating, Spock.
Must be in there,
Captain.
Jim...
Spock...
no pain.
No.
Go away.
You must not take
the Controller away.
We will all die!
The Controller is
young and powerful.
Perfect!
How very flattering.
You will give life to my people
for 10,000 years.
You'll find
another Controller.
The old one
is finished!
There is no other
than this
and will not be another
for 10,000 years.
Spock, you're in a black box
tied in with light rays
into a complex
control panel.
Fascinating.
You say
you're breathing,
pumping blood,
maintaining
temperature?
Is it possible that you're
recirculating air,
running
heating plants,
purifying water?
Indeed, Captain.
That is unquestionably
part of what lam doing.
He must stay!
He will not stay.
Now, you took his brain.
You will put it back.
How did you do it?
I do not know.
She couldn't, Jim.
Her mind is functioning
on a very simple level.
Mental faculties here
seem to be almost atrophied
because of non-use.
She was on
the Enterprise.
How did you do it?
It was
the old knowledge.
How do you get it?
I put upon my head
the teacher.
What is the teacher?
The great teacher of
all the ancient knowledge.
If I may explain, Captain,
she refers to the tape
storehouse of knowledge
of the builders
of this place.
I scanned it.
A most impressive store.
How does it work?
Show us.
I cannot.
You must tell us.
I cannot.
Only by command of the ancients
may I understand.
How does it work?
Show us!
We'll protect you.
It is a device
with feeding circuits.
They lead into the mind
of the priestess leader.
Its use is strictly
predetermined by the builders.
No! Knowledge is forbidden!
I must not know the secret!
I'll be punished!
Gentlemen...
the Controller's explanation
of the functioning of the teacher
is essentially correct.
However, he is giving
no credit to me.
I provide the means
whereby the knowledge is used.
Without me, Captain--
Without you there could be
no delicate miracle
that kept Spock's
brain alive.
Thank you, Doctor.
That was very gracious.
Yes. From the very first,
I appreciated your ability.
Good, Captain Kirk.
Then you also appreciate
that without the teacher,
I would not have
the knowledge to use
that which you have
thoughtfully provided.
That phaser
is set to kill.
So it is.
That is the knowledge
you have brought me.
Do not move.
If your weapon kills,
it will kill you.
We didn't bring you the knowledge
of killing.
If you continue,
you'll kill Spock.
The