regular
space commercial lanes.
It has been attacked
by a bacterial invasion
which threatens to render it
lifeless unless checked.
Our mission--
to decontaminate it.
Mr. Chekov, an estimated
time of arrival for Ariannus?
At present speed, our E.T.A.
is three hours, four minutes, sir.
Lieutenant Uhura, advise
the planet's ministry of health
that we'll begin
decontamination procedures
- upon locking into orbit.
- Aye, aye, sir.
Scotty, will that
present any problems?
None, sir. All tanks
are being positioned.
Captain, sensors indicate
a space vehicle ahead.
- Is it within visual range?
- Coming into range now.
It's following
a very erratic course.
Put it on the screen,
extreme magnification.
I think that may be
a Starfleet shuttlecraft.
That is exactly
what it is, Mr. Chekov.
It looks like the one
stolen from Star base 4.
Lt. Uhura, try to contact them
on command frequency 2.
Aye, Captain.
- No response, sir.
- Try all frequencies.
Aye, sir.
Hailing on all frequencies.
There is one living creature
aboard-- humanoid.
He is either injured or ill.
His craft shows internal
atmospheric leakage.
The creature
may be suffocating.
[Kirk] Lieutenant Sulu,
activate tractor beams.
Tractor beams activated.
We have it, sir.
- Prepare to bring it aboard.
- Aye, sir.
- Lt. Uhura, send a security team.
- Aye, sir.
Mr. Spock, come with me.
Scotty.
[Loudspeaker]
Hangar doors open and clearing
for entrance of shuttlecraft.
Shuttlecraft approaching
hangar deck.
- [Intercom] Bridge to Capt. Kirk.
- Kirk here.
Hangar doors are closed,
and deck is pressurizing.
Acknowledged.
We'll enter as soon as the doors
open, and we'll go on my command.
[Button Beeps]
Space--
the final frontier.
These are the voyages
of the star ship Enterprise.
Its five-year mission--
to explore strange new worlds,
to seek out new life
and new civilizations,
to boldly go where
no man has gone before.
You are certain, Doctor,
that this pigmentation
is the natural condition
of this individual?
That's what I've recorded,
Mr. Spock.
Do we have any knowledge
of a planet
that could have produced
such a race of beings?
- Negative, Captain.
- Bones, what do you make of it?
I can't give you any specific
circumstance that will explain him.
And judging by looking at him,
we know at the very least
he is the result
of a very dramatic conflict.
Spock?
There is no theory, Captain,
from the basic work of Mendel
to recent nucleotide studies,
which would explain our captive.
All gradations of colour
from black to brown,
to yellow to white
are genetically predictable.
We must therefore conclude
that this alien
is that often
unaccountable rarity--
a mutation,
one of a kind.
- I would agree. That's the case.
- Your prognosis, Doctor?
Well, I can't give you one.
I've never worked on anyone
or anything like him.
Yet, you are pumping him
full of your noxious potions
as if he were a human.
When in doubt,
the book prevails, Mr. Spock!
I've run tests. Blood is blood,
even when it's green like yours.
The organs are there.
They're rearranged to a degree,
plus a few I've never seen before.
Now, I've enriched the oxygen
content of his blood
and pumped in
a strong stimulant.
And I must say, his recuperative
powers appear to be excellent.
With your permission, Captain,
I shall do some further research
and join you on the bridge.
He's coming around, Doctor.
Well!
Touch and go there for a minute,
but you're out of danger now.
You're aboard
the star ship Enterprise.
I've heard of it. It's in
the United Fleet of Planets?
Federation.
So is the shuttlecraft
- that you were flying.
- It was?
Don't you usually know
whose property you've stolen?
I am not a thief!
Well, certainly no ordinary thief,
considering what it is
you... appropriated.
You're being very loose
with your accusations
and drawing conclusions
without any facts.
I do know you made off with a ship
that