Welcome to Deep Space 9.
I'm Major Kira.
Lucsly. Department of Temporal Investigations.
We've been expecting you.
I guess you boys
from Temporal Investigations are always on time.
Where's Captain Sisko?
Are you sure you don't want anything?
Just the truth, Captain.
You'll get it.
Where do you want to start?
If there is such a thing.
Captain, why'd you take the Defiant back in time?
It was an accident.
So you're not contending
it was a predestination paradox?
A time loop... that you were meant to go back into the past.
We hate those.
So... what happened?
This may take some time.
Is that a joke?
We hate those, too.
All right, Captain, whenever you're ready.
Two weeks ago
the Cardassian government contacted me
and wanted to return an Orb
to the Bajorans.
They're devices of an alien origin
that are considered sacred objects
by the Bajoran people.
Each has a unique property
like the Orb of Prophecy or the Orb of Wisdom.
The one we received from the Cardassians
was the Orb of Time, although we didn't know that at first.
But when the Defiant arrived at Cardassia Prime
we weren't sure if we were dealing with a genuine Orb
or one of the fakes that have cropped up over the years.
I had it secured in one of the crew quarters
so we could bring it back to Bajor for authentication
but before we left Cardassia
we took on a passenger.
I never thought I'd see another normal face again.
This is Mr. Waddle.
Yeah, Barry. Call me Barry.
We are taking him back to the Federation.
He was trapped on Cardassia when the Klingons attacked.
I'm a merchant.
I deal in gemstones, kevas and trillium mostly.
You know what Cardassians drink in the morning?
Fish juice... hot fish juice.
After six months
I was hoping the Klingons would invade.
Ah, at least they know how to make coffee
even if they are foul-smelling barbarians.
I wouldn't take it personally, Worf.
I rather like the way you smell.
Yeah, a sort of earthy, peaty aroma.
With a touch of lilac.
With the Defiant under cloak, we left Cardassian space
and managed to avoid being detected by the Klingons.
We were halfway home
and I was just starting to breathe easy.
Next time you see him, just sniff the air
and go, "Is that lilac?"
No! Find somebody else.
I have my own ways of torturing Worf.
Don't look at me.
I'm picking up a massive surge in chroniton radiation around...
I don't know, but we've dropped out of warp.
Sensors are coming back on line.
Benjamin, something's very wrong.
According to the navigational computer
we're over 200 light-years
from our last position.
Someone's activated the transporter.
Deactivate it and get us back under cloak.
I'm picking up another ship dead ahead.
Can you identify it?
Not yet, but it's close
Chief, I need that viewscreen.
I think I've got it.
Be specific, Captain. Which Enterprise?
There have been five.
This was the first Enterprise, Constitution-class.
James T. Kirk.
The one and only.
17 separate temporal violations...
the biggest file on record.
Man was a menace.
What was the date of your arrival?
105 years, one month, 12 days ago.
What was the Enterprise doing?
She was orbiting one of the old deep space stations... K-7
near the Klingon border.
that just before we were thrown back in time
someone stunned the Deputy who was guarding the Orb
and broke into the cabin.
It didn't take us long to realize who it was.
His real name is Arne Darvin...
he's a Klingon altered to look human.
His surgeon does nice work.
We're assuming that he came aboard the Defiant
for the express purpose of gaining access to the Orb.
Any idea why he brought us back to this point in time?
We have a theory.
This is Darvin as he appeared during that time period.
At this moment, he is aboard Space Station K-7
posing as a Federation official.
So you're saying he's a spy.
The younger Darvin's mission
was to derail Federation colonization efforts
by poisoning a shipment of grain
which was... which is stored aboard the station.
However, 18 hours from now
James Kirk will expose him, and he will be arrested.
That arrest will end his career.
Klingon Intelligence will turn their back on him
and he will become an outcast.
From what we've been able to piece together
he spent the next hundred years
eking out a meager living posing as a human merchant.
Then, in a final indignity
he was trapped in Cardassian space
by the Klingon invasion.
Until he heard rumors about an Orb
capable of taking him back in time.
So, what is he planning to do?
Contact his younger self and warn himself about Kirk?
He could be planning to kill Kirk.
The bottom line is
we have to find Darvin and stop him
before he has a chance to alter history.
Do we know where he beamed to?
No. He wiped the transporter logs when he beamed out.
So, he could be on the Enterprise or the station.
We'll have to search both without raising suspicion
or altering the timeline ourselves.
The last thing I want
is a visit from Temporal Investigations when we get home.
I suppose we ought to find a way to blend in.
Well... Lieutenant, actually.
I didn't want to push my luck.
Looks good on you, sir.
Thank you, Ensign.
Wait a minute.
Aren't you two wearing the wrong color?
Don't you know anything about this period in time?
I'm a doctor, not an historian.
In the old days, Operations officers wore red.
Command officers wore gold.
And women wore less.
I think I'm going to like history.
The original Enterprise used an old-style
duotronic sensor array.
If we wait for just the right point
in the scan cycle, we can de-cloak the Defiant
for almost three seconds without being detected.
Is that enough time to transport us aboard?
Chief, here are the coordinates.
The Captain and I will start on Deck Four
and work our way aft.
You and Julian should start on Deck 21...
And work our way forward.
What about the station?
Little of it is habitable.
Most of K-7 consists of storage areas
and industrial fabrication facilities.
It shouldn't take long to search.
Security isn't as tight as it is on a starship.
Remember... try to avoid contact
with people of this time period.
We're coming up on a band shift in the scan cycle.
I said, Deck 21.
Maybe if you said, "Please."
What's wrong with this thing?
Don't ask me.
I don't know anything about this time period.
Maybe it's jammed.
Take that panel off the wall.
I won't tell anyone if you don't.
They really packed them in on these old ships.
What about over there?
An auxiliary communications juncture.
I'll pretend to do repairs.
You scan for Darvin.
I used to have one of these.
Hmm. I love classic 23rd-century design.
I don't want any more Spican flame gems.
Thanks to you I already have enough Spican flame gems
to last me a lifetime.
How sad for you, my friend.
You won't find a finer stone anywhere...
What's your pleasure?
Uh, I'll have a raktajino.
You're the second person today who ordered that.
What is it?
The second person?
Who was the first?
An older man... a human.
Where is he now?
I don't know.
He left about an hour ago.
I think he said he'd be back.
We don't have any Klingon beverages.
Would you like something else?
You're a difficult man to reach
but I have something
from the far reaches of the galaxy.
Surely you want...
Not at your price.
Ooh, what is it?
Is it alive?
May I hold it?
Oh, it's adorable.
What is it?
Chief, you're supposed to be working.
I'm afraid to touch anything.
It's all cross-circuited and patched together.
I can't make head nor tails of it.
Sounds like one of your repair jobs.
Well, there's no sign of Darvin in this section.
I'm going to have to widen the scan radius.
If I can figure out how.
Well, keep the scan field below 20 milliwatts.
Otherwise, you'll set off the internal sensors.
Thank you, Chief.
I was listening during the mission briefing.
What are you two doing here?
Scotty told me to do this.
Oh, you were going to... do this?
It's on the duty roster.
Must have been... some mix-up.
Isn't that a medical tricorder?
Yes. Yes, it is.
I'm a doctor.
Why do we need a doctor to repair a power relay?
No. I'm doing a study.
It... has to do with... work-related stress.
Why don't you two, um, go on?
Pretend I'm not here.
So, where should we start?
obviously, the... first thing
we should do is to take this, uh...
this transtator here...
Leave it exactly where it is.
job pressure's been getting to him.
Why don't you take over?
All right, Ensign.
I think I've seen enough.
Let's get you back to Sick Bay.
Oh, uh, I'd appreciate it
if you wouldn't mention this to anyone.
Hope you feel better.
I have completed my search of the Primary Habitat Level...
What is that sound?
Soothing, isn't it?
The bartender called it...
You're drawing attention.
Where did you get that... thing?
From a man named Cyrano Jones.
He told me tribbles like everyone
but this one doesn't seem to like you.
The feeling's mutual.
They are detestable creatures.
It's been my observation
that most humanoids love soft, furry animals
especially if they make pleasing sounds.
They do nothing but consume food and breed.
If you feed that thing more than the smallest morsel
in a few hours, you'll have ten tribbles
then a hundred, then a thousand.
They were once considered
mortal enemies of the Klingon Empire.
A mortal enemy of the Empire?
They were an ecological menace, a plague to be wiped out.
What are you saying?
Hundreds of warriors were sent to track them down
throughout the galaxy.
An armada obliterated the tribble homeworld.
By the end of the 23rd century, they had been eradicated.
Hmm. Another glorious chapter of Klingon history.
Tell me, do they still sing songs
of the great tribble hunt?
What should we do?
Get to battle stations.
Let's see if we can find out what's going on.
Sisko to Defiant.
Sisko to Defiant.
A Klingon D7 battle cruiser just dropped out of warp.
It's approaching the station.
Have they locked weapons?
Kira, can you identify the Klingon vessel?
The IKS Gr'oth.
That's Koloth's ship.
Curzon's old friend?
Yes, and he isn't going to attack.
I remember Koloth telling me he once traded insults with Kirk
on a space station near the Federation border.
He always regretted never getting the chance
to face him in battle.
The Klingon ship just transported two people
to the Station Manager's office, Captain.
Maybe we should beam over to the station
to help Odo and Worf.
We know Darvin was there a few hours ago.
I think it might be better
if Chief O'Brien and Dr. Bashir go.
But if we went, we might run into Koloth.
It's not as if he would recognize me.
I'd love to see him at his prime.
Major, beam the Chief and the Doctor to K-7
and fill them in.
It would have been fun.
Too much fun.
Dax was right about the Klingons.
They were only interested in shore leave
and Captain Kirk allowed them
to beam aboard the station in small groups.
When the Enterprise stood down from Red Alert
we all resumed our search for Darvin.
The next band shift
in the Enterprise scan cycle will be in three minutes.
We'll be ready, Major. O'Brien out.
We should find a turbolift.
Your flap's open.
On your tricorder.
You're draining power.
He's always doing that.
You're a doctor?
I just transferred here
from the Lexington last week.
I'm coming into Sick Bay tomorrow for my physical.
You realize, of course, she was just using you
to get to me?
that was my great- grandmother's name.
And I think she was in Starfleet.
Well, it's a common enough name.
But if that was her?
Do you realize the odds?
No one ever met my great-grandfather.
This could be a predestination paradox.
Come on, Chief.
Surely you took elementary
temporal mechanics at the Academy.
I could be destined to fall in love with that woman
and become my own great-grandfather.
You're being ridiculous.
If I don't meet with her tomorrow, I may never be born!
Chief, are you ready for transport?
Are we ever.
You saw the way she looked at me.
You can't just dismiss this.
I can try.
but I can't wait to get back to Deep Space 9
and see your face when you find out
that I never existed.
Dax and I resumed our search for Darvin.
Dax and I resumed our search for Darvin.
Bridge to Captain Kirk.
Mr. Baris is waiting
on Channel E to speak to you, sir.
We're a maintenance crew just doing our job.
Mr. Baris is coming on.
Yes, Mr. Baris, what can I do for you?
Kirk, this station is swarming with Klingons.
I was not aware, Mr. Baris
that 12 Klingons constitutes a swarm.
Captain Kirk, I consider
your security measures a disgrace.
In my opinion, you have taken this entire...
I had no idea.
He's so much more handsome in person.
Kirk had quite the reputation as a ladies' man.
Not him... Spock.
...free and complete access to this station
for that man who just walked out of here...
Mr. Baris, I have guards around the grain.
I have guards around the Klingons.
I can't believe you don't at least
want to meet Captain Kirk?
That's the last thing on my mind.
Oh, come on, Benjamin, are you telling me
you're not the tiniest bit interested in meeting
one of the most famous men in Starfleet history?
We have a job to do.
But it's... it's James Kirk.
Look, of course, I want to meet him.
I'd like to shake his hand, ask him about...
fighting the Gorn on Cestus III.
But that's not why we're here, old man.
I guess the difference between you and me is
I remember this time.
I lived in this time, and it's...
it's hard to not want to be a part of it again.
Clearly, we've been going about
this search business all wrong, Chief.
Why bother searching
30 decks when you can just plunk yourself down
at the bar here and wait for Darvin
to come to you?
We have reason to believe that he'll return to this area.
Ah, yes, the raktajino.
A vital clue that others might have missed.
How fortunate it is
that it has kept you stuck at this bar
for the past three hours having drinks
while we've been crawling through conduits.
My God, that's him.
The one on the left
in the gold, just sitting down.
It would be an honor to meet him.
Let's buy him a drink.
no one is buying anyone a drink.
We can't risk altering the timeline.
What'll it be, boys?
And don't ask for raktajino.
If I have to say we don't carry that one more...
Who ordered a raktajino?
And over there.
Those are Klingons?
All right, you boys have had enough.
They are Klingons, and it is a long story.
Some kind of genetic engineering?
A viral mutation?
We do not discuss it with outsiders.
Take it easy, lad.
Everybody's entitled to an opinion.
and if I think
that Kirk is a Denebian slime devil
well, that's my opinion, too.
Don't do it, mister, and that's an order.
But you heard what he called the Captain.
Look at the way Kirk is ignoring that Klingon.
He's letting his security officer handle it.
Chief, are you sure that's Kirk?
Why is he wearing
...saggy, old rust...
I think we've got bigger problems
than a case of mistaken identity.
Half the Quadrant knows it.
That's why they're learning to speak Klingonese.
don't you think you should... rephrase that?
I didn't mean to say
that the Enterprise should be hauling garbage.
I meant to say that it should be hauled away as garbage.
What are you doing?
Your men could've avoided that fight, Captain.
Regulation 157, Section Three, Paragraph 18:
"Starfleet officers shall take all necessary precautions
"to minimize any participation
in historical events."
It was a mistake.
But there were no lasting repercussions.
How do you know that?
For all we know, we could be living
in an alternate timeline right now.
If my people had caused any changes in the timeline
we would've been the first to notice when we got back.
Why do they all have to say that?
your men were arrested...
That's right, but instead of being taken to the brig
they were brought in for questioning.
I want to know who started it.
Who started the fight?
I don't know, sir.
I know you.
You started it, didn't you?
No, sir. I didn't.
Well, who did?
I don't know, sir.
"I don't know, sir."
I want to know who threw the first punch.
All right, you're all confined to quarters
until I find out who started it.
That was close.
Me... of all the people in the lineup
he asks me who threw the first punch.
And you lied to him.
I lied to Captain Kirk.
I wish Keiko could've been here to see it.
I'm sorry about that, little fellow.
Who left you out here all alone?
He's not alone.
Welcome back, Mr. Darvin.
The pleasure is all mine.
I hope you realize you'll be facing
some very serious charges when we get back.
You wouldn't dare
put one of the greatest heroes of the Klingon Empire
into the brig.
You are no hero to the Empire.
I will be.
I've been thinking about my statue
in the Hall of Warriors.
I want it to capture my essence.
Our statues can be so...
generic sometimes, don't you think?
I take it whatever your plan is
you've already set it in motion.
I see myself standing with Kirk's head in one hand...
and a tribble in the other.
What have you done?
Did you hire someone to kill him?
Did you sabotage the Enterprise?
Nothing so mundane.
Let's just say that Kirk's death
will have a certain poetic justice to it.
He put a bomb in a tribble?
It's his revenge.
Originally, Kirk saw how a tribble reacted
to Darvin and realized that he was a Klingon.
He wouldn't say where this tribble was
but he did say that it was set to go off within the hour.
It could be anywhere.
Benjamin, I think we should risk going to the Bridge.
If we can use the internal sensors
we can scan the entire ship for explosives
in a matter of seconds.
Dax and I will take care of the Enterprise.
The rest of you beam over to K-7 and start searching there.
But I think Mr. Worf should remain here.
It seems he's... allergic to tribbles.
I'm not sure we can get to K-7's internal sensors.
Then you will have to manually scan
every tribble on the station.
There must be thousands of them by now.
Hundreds of thousands.
That's starting with one tribble with an average litter of ten
every 12 hours.
After three days...
You have your orders, people. Sisko out.
Dr. McCoy, would you mind coming up to the Bridge?
I rerouted the sensor interface.
I'm scanning the Bridge.
Nothing up here.
That's a relief.
When Kirk sat on that tribble, I half expected it to go off.
Nothing on the first six decks.
Did you want to see me, Jim?
Well, don't look at me.
It's the tribbles who are breeding.
I know him.
That must be McCoy, the ship's doctor.
Well, the nearest thing I can figure out
is that they're born pregnant...
which seems to be quite a time saver.
I met him when he was a student at OI' Miss.
Who met him... Curzon?
My host at the time was Emony.
She was on Earth judging a gymnastics competition.
I had a feeling he'd become a doctor.
He had the hands of a surgeon.
I've scanned every deck.
The bomb's not aboard the ship.
Then it must be somewhere on K-7.
not on the Enterprise. It must be over there.
We've only been able to get through two decks.
We're running out of time.
I can send more teams from the Defiant.
It's not a question of manpower.
It's a question of multiplication.
The tribbles are breeding so fast we can't keep up with them.
Benjamin, maybe we could narrow things down a little.
Presumably, Darvin put the bomb somewhere he knows Kirk
is going to be in the next half an hour
so if we stick close to Kirk...
He might lead us right to it.
It's worth a try, but there's no reason
for us to stop searching over here.
Keep at it for now, Constable.
This is my chicken sandwich and coffee.
I want these things off the ship.
I don't care if it takes every man we've got.
I want them off the ship.
Aye, they're into the machinery, all right
and they're probably in all the other
food processors, too.
Probably through one of the air vents.
Captain, there are vents of that type
on the space station.
And in the storage compartments.
Storage compartments. Storage compartments.
...meet us near the storage compartments.
We're beaming down.
Most of these are dead.
The grain's poisoned.
I'm picking up a faint tricobalt signature.
The bomb's under here somewhere.
It's not working, sir.
It seems to be stuck.
Here, let me try.
Someone's trying to open the bay door.
Benjamin, it's right here in front of us.
They seem to be gorged.
On my grain?!
Kirk, I am going to hold you responsible!
Must be thousands of them.
Hundreds of thousands.
That's assuming one tribble multiplying
with an average litter of ten producing a new generation
every 12 hours over a period of three days.
I found it.
Sisko to Defiant.
Go ahead, Captain.
I found the bomb.
Lock on to my tricorder signal
and beam it into space.
Kira to Sisko.
And as Captain, I want two things done.
First, find Cyrano Jones...
close that door.
After the bomb was detonated, history continued uninterrupted.
And thanks to the tribbles
Kirk was able to uncover the truth about Darvin.
They don't like you, Mr. Darvin.
I wonder why?
Jim, this man is a Klingon.
By the time we returned to the Defiant
Major Kira had discovered how to use the Orb
to bring us back to our own time.
And that's when you returned to the present?
Well... not exactly.
Before we left
I realized there was one last thing I had to do...
something I'd been thinking about
ever since I saw that ship on the viewscreen.
Excuse me, Captain.
Here's tomorrow's duty roster for your approval.
Lieutenant, uh... Lieutenant...
Benjamin Sisko, sir.
I've been on temporary assignment here.
Before I leave, I just want to say...
it's been an honor serving with you, sir.
All right, Lieutenant, carry on.
Thank you, sir.
if you want to put a letter of reprimand
in my file for that, then go ahead.
We'll have to review the case
before making any recommendations.
However, I don't think there was any harm done.
Probably would have done the same thing myself.
You'll be receiving our report in about a month.
But, based on what you've told us
I don't think you have anything to worry about.
I'm glad to hear it.
Docking Port Seven.
It went well?
The Constable wants to see us on the Promenade.
Did you tell them?
They didn't ask.
I'm open to suggestions, people.
We could build another station.