Translator tied in.
This is Capt. James Kirk
of the U.S.S. Enterprise.
We wish you no harm.
[ Console Beeping ]
Physical contact between us
is fatal to our life-forms.
Please do not come
any closer to our ship.
Perhaps it did not understand.
Captain, change in velocity recorded.
[Sulu] They are passing
our star board side...
and maneuvering in front of us.
Switching to forward scanner.
Captain, change
in velocity recorded.
It has accelerated its approach.
Help, Scotty!
- What?
- Hold me. It's happening again.
- No!
- Mira.
Perhaps it understands
another kind of language.
Condition red alert!
- [Sirens Blaring]
- Prepare for phaser firing.
Mira.
No, Scotty.
No! No.
[Kirk]
Lock in phaser tracking controls.
Locked in, sir.
Adjust phasers
to fire across its course.
Do not hit it.
- Locked in, sir.
- Fire.
Reaction, Mr. Sulu?
None, sir.
They're still approaching us.
Apparently a shot across the bow
is insufficiently convincing.
Prepare to lock phasers
into the heart of the community.
- Locked in, sir.
- Fire.
Scotty!
[ Grunts ]
Mira! Mira.
[Sulu] The phasers seem
to have stopped their approach.
- Lock in for another blast.
- Locked.
[Scotty On Intercom]
Captain!
Captain, the phaser shots,
they're killing Mira!
Killing Lt. Romaine?
Aye. When you fired
the phasers, she crumpled.
Another shot
and you'll kill her!
Get her to sick bay at once.
Ready for firing, Captain.
Cancel that order.
Another attack on that alien life-form
will kill Lt. Romaine.
- It appears so.
- If she is to survive, we can't attack.
- Not directly.
- Can the computer supply a defense...
based on the data you've
been accumulating?
Negative, Captain. I have not been able
to gather sufficient data for that.
Captain, there is only one
possible defense:
if we can find an environment
which is deadly to the alien form.
And yet isolate the girl
from its deadly effects.
- Captain Kirk to Dr. McCoy.
- Yes, Captain.
Is the girl well enough
to be questioned?
I can have her ready
in a few minutes.
Have the lieutenant and Mr. Scott
in the briefing room.
Bring all available
biographical material with you.
Kirk out.
Mr. Spock, come with me.
- Go easy on her. She's in a bad state.
- I'll try.
Lt. Romaine.
I didn't mean to be
uncooperative, Doctor.
- Of course you didn't.
- We must understand what is happening.
I'll tell you everything I know.
Ship's investigative
procedures...
are sometimes confusing
to a new crewman.
I trust all of you implicitly.
- I want to help.
- This investigation...
has been prompted
by two events:
first is the time you
passed out on the bridge:
and the second is when we fired
our main phasers into that force...
- and seriously injured you.
- You mustn't worry about hurting me.
Now, this is how we'll proceed.
Mr. Spock has
all the information...
available to us
about our attackers.
Dr. McCoy has access
to Starfleet's exhaustive files on you.
A comparison of the two
may turn up some connection...
which may protect you
and ourselves.
All right, gentlemen?
Dr. McCoy, will you proceed?
[ Computer Processing, Beeping ]
"Romaine, Mira, Lieutenant. Place of
birth: Martian Colony Number Three.
"Parents : Lydia Romaine, deceased,
Jacques Romaine, chief engineer,
Starfleet, retired. "
Mr. Spock, are you prepared with
the background history of the attackers?
I am, Captain. I have fed all
obtainable data to the main computer.
It should supply whatever
conclusions are possible.
Thank you.
Mr. Sulu,
what is the status of our friends?
Status unchanged. They're still
with us and keeping the same distance.
Continue evasive maneuvers.
Keep me informed.
Kirk out.
Doctor, you have a medical record
of Lt. Romaine?
Yes, Captain.
I'd like a few items from her
psychological profile checked.
Any history of
psychosomatic illness?
[Computer Processing]
Occasional and teenage
routine incidents.
Any evidence of unconscious