Original subtitles

Space, the final frontier.

These are the voyages of the Starship 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.

Captain's Log, Stardate 6770.3.

The Enterprise is on course for the planet Babel,

where ambassadors from all Federation planets

are waiting to honor the Enterprise's distinguished passenger,

Commodore Robert April, first captain of the U.S.S. Enterprise,

and for the past 20 years, Federation Ambassador-at-large.

Now 75 years old,

Commodore April has reached mandatory retirement age.

No matter where I've traveled in the galaxy, Jim,

this bridge is more like home than anywhere else.

Yes, Commodore, I know the feeling.

To me she was always like my child.

I was there in the San Francisco Navy Yards

when her unit components were built.

Jim, I didn't realize how many of the tools I use in Sickbay

were designed by Sarah.

As the first medical officer aboard a ship equipped with warp drive,

I'm afraid I had to come up with new ideas all the time.

Your modesty is unnecessary, Mrs. April.

Your achievements as a pioneer doctor in space are well known.

And it's nice to know the lady is as intelligent as she is beautiful.

Much like the flower she carries.

Oh, Doctor, flattery will get you everywhere.

But I'm afraid my flower is dying.

It's a native of Capella IV, isn't it?

Yes, but it has a life span of only a few hours.

This morning it was a seedling, within a few hours it will be dead.

Excuse me, Captain.

You asked to be notified when we made visual contact with the Beta Niobe nova.

Thank you, Mr. Spock.

Mrs. April, you're about to see another of the galaxy's most beautiful sights,

the Beta Niobe's supernova.

It is beautiful,

but also very deadly.

We're traveling at a safe distance from the nova, Mrs. April.

Beta Niobe. You were present when the star first started its explosion, Jim.

- Yes, we were, Commodore. - Captain.

Sensors are picking up an unidentified object

traveling at an incredible speed,

presently on collision course with the Enterprise.

Put the ship on Red Alert.

How fast is it traveling, Mr. Spock?

At a speed that should be impossible to achieve.

Something on the order of warp 36.

No natural object has ever been recorded as traveling at that speed!

I believe it is not a natural object, but a ship.

But who would have the technology

to build a ship that could travel at such a speed?

No known race, Captain.

Nevertheless, it will contact us in 1.4 minutes.

Hard about, helmsman. Change course for 24 mark 7.

Correction, Captain.

The ship was on a collision course only by coincidence.

It is apparently heading for the heart of the Beta Niobe nova.

That's a course of self-destruction.

Lieutenant Uhura, open hailing frequencies.

I want to talk to that ship's captain.

Captain, that ship is not responding.

All right, if they won't talk, we'll slow them down.

Mr. Sulu, put a tractor beam on that ship.

Tractor beam on and operating, Captain.

We're having a small effect on other ship's speed, Captain.

It has dropped to a speed of warp 32.

Captain, they are making visual contact.

Put it on the screen, Lieutenant.

- I've never heard that language before. - Nor I.

Run that message through the universal translator, Lieutenant Uhura.

Perhaps it can tells us what language she is speaking in.

Captain, the universal translator has the answer.

The woman is speaking the same universal language we speak,

but she is speaking in reverse.

Lieutenant, let's hear that tape backward,

which should sound forward to us.

Yes, sir, on the screen.

I am on a priority mission. Your beam is slowing my progress.

Release my ship at once, or I am doomed.

Open hailing frequencies again, Lieutenant.

Tell her she is endangering her life if she remains on her present course.

No use, sir. She's refusing to answer.

- Captain. - Yes, Scotty, what is it?

Captain, the engines are buckling!

- We cannot keep up at this speed. - Mr. Arex, what is our speed?

Now at warp 11, Captain.

Mr. Spock, how long until the alien vessel makes contact

with the Beta Niobe nova?

Three minutes, 42.7 seconds.

Give me three-and-a-half minutes, Scotty.

Still increasing speed, Captain.

Warp 14.

Warp 15.

I have no choice. I have to release the tractor beam.

I can't destroy this ship and 430 people to save one person.

Mr. Sulu, release our beam.

- Sir, I can't release the tractor beam. - What do you mean, Mr. Sulu?

Our controls are inoperative. The ship isn't responding like it should.

Go to manual override.

Not responding, sir.

We've gotta release that beam,

or we're gonna follow that ship into the nova!

Our speed is now warp 20

and the other ship will contact the nova in one minute, 58.3 seconds.

I'm sorry, Commodore, Mrs. April.

It looks as though we may not reach Babel.

As starship personnel, we were always prepared to give our lives, Captain.

We are still starship personnel, Captain.

There's still one chance.

After that ship enters the nova, it should burn up,

and break contact with our tractor beam.

Mr. Spock, how long will we have to apply full braking power

and execute course change?

We are up to warp 22 and increasing, Captain.

We shall have 42.85 seconds to correct our course

after the alien ship enters the nova.

- You heard that, Mr. Sulu. - Aye, aye, sir.

Mr. Scott, we're going to apply full braking power in a minute.

Aye, Captain. Our engines are almost gone.

They've only lasted this long at this speed

because the alien vessel is pulling us with our own tractor beam.

The alien vessel will contact Beta Niobe in 52.3 seconds, Captain.

Contact in 39 seconds,

38, 37...

...13, 12, 11...

Get ready to execute course change, Mr. Sulu.

Yes, sir.

Now, Mr. Sulu!

Something's wrong, Captain!

We are still being pulled by the alien ship!

Lmpossible! It should have been destroyed instantly.

Apparently it was not, Captain.

Our tractor beam is still connected to her.

And we are still increasing speed.

Contact with the nova in 35.18 seconds.

That other ship may have been able to survive the heat of a nova,

but the Enterprise can't.

Mr. Scott, how about that full braking power?

We're as badly off as before, Captain.

We have no control of the ship as long as that alien lassie has us in tow.

Contact in 20 seconds.

Keep trying those controls, Mr. Sulu!

Still no change, Captain.

It's got to work!

14 seconds,13, 12...

Never mind, Mr. Spock, it's no use.

We're still here.

Lieutenant Uhura, can you get us a visual?

- What? - Where are we?

Captain's Log, Stardate 6770.6.

The Enterprise has passed into the most alien landscape I have ever seen.

We are in some reverse universe where black stars shine in a white void.

We are still in the tow of the alien ship,

both of us having survived the extreme heat of the Beta Niobe nova.

This is Scott, calling the Captain.

Yes, Scotty, how are we doing down there?

Well, we just had to learn to run the ship all over again.

Every control is working in reverse.

All right, Lieutenant Uhura,

we're going to contact that ship again.

- We need some answers. - Captain Kirk! The Capellan flower!

I'm sure Captain Kirk has other problems besides your flower, dear.

You don't understand.

Before we entered this universe, it was about to die

and now it's in full bloom again.

How is that possible?

It's as if it were growing younger again.

I can almost feel it while I'm holding it.

Captain,

the flower is not the only thing on board that is growing younger.

Explain, Spock.

Ship's chronometers are also running backward.

The flow of time is reversed in this universe.

The longer we stay here, the younger we will become.

The alien ship is responding to our call, Captain.

Your interference almost cost me my life.

I can understand her now, without the aid of the universal translator.

Apparently our brains are also working in reverse, Captain,

so we can now understand her language.

That is why the ship seems to be operating in the reverse to us.

I am Captain James T. Kirk of the U.S.S. Enterprise.

We tried to prevent you from entering the Beta Niobe nova.

We assumed your ship would burn up.

I had to return to my own universe, Captain Kirk.

Who are you? How did you come to be in our universe?

I am an explorer of space.

I was caught unaware when Amphion, previously a dead star,

went nova and came to life.

I was pulled into the star.

But instead of burning up, I passed into a universe

where everything operates in reverse to my universe.

- Our universe? - Yes.

My theory is that two stars going nova in the same place in both universes

created a gateway which I passed through.

In her universe, a nova is a dead star which comes to life!

And when the explosions of a nova in her universe

and one in our universe occur together,

it's possible to travel between the two universes.

Then we must return the same way, through the two novas.

That would be impossible, Captain.

Amphion is no longer nova, it has begun its life as a star.

I suggest you set a course to follow my ship.

Perhaps our scientists can help solve your problem.

We have little choice.

Captain's Log, supplemental.

We are proceeding to Karla Five's planet, Arret.

Gentlemen, I'm sure none of us mind

growing younger instead of older for a change.

It pleases me, Jim.

If we stay here long enough,

I'll no longer be at the mandatory retirement age.

Nevertheless, we must return home and I am open to suggestions.

It is logical that we must reproduce the conditions that brought us here.

Two novas must occupy the same space in both universes

in order to create a gateway for us to travel through.

One star dying in our universe, and one star being born here

would recreate the correct conditions.

That would take a remarkable coincidence, Mr. Spock.

Captain, we are approaching Arret.

Karla Five is asking if you are prepared to beam down to the planet.

Tell Karla Five that Mr. Spock,

Commodore April and myself will be beaming down.

Yes, sir.

Karla Five has given us coordinates

to beam down to her son's laboratory, Captain.

Her son?

We don't have time for children's games right now, Scotty, but beam us down.

Aye, sir.

May I introduce my son, Karl Four.

- My honor to meet you, gentlemen. - Most logical.

If the flow of time is reversed,

then one is born at an old age, and dies in infancy.

Your descendants are born before you

and your ancestors are born after you.

- Then the young child in the playpen... - My father, Captain.

We could remain forever awed

with the differences between our universes, Karla Five,

but we must discover a way to return to our positive matter universe.

Exactly the problem I have been working on

since Karla informed me of your troubles, Captain Kirk.

This is a map of our galaxy.

Our home solar system is here.

You entered our universe through the Amphion nova, here.

We need to coordinate this to our own universe.

- Can we do that, Spock? - Yes, Captain.

Apparently the two universes occupy the same space,

but in different dimensions.

Assuming Beta Niobe and Amphion occupy the same space,

we can determine if there are any other novas

occupying the same space in both universes.

Correct, Commodore.

Now if you'll watch the star map, you'll see the Milky Way.

Here is Beta Niobe. And here is Earth.

It corresponds exactly with Arret.

By superimposing both star maps,

we will see where two stars occupy the same place in both universes.

The red spheres indicate where two stars are in the same space.

No pair are novas in both universes.

If stars begin as dead stars here,

then we could bring one to life, prematurely.

Yes, we could act as a midwife giving birth to a star.

Then we would have two novas in the same position

and theoretically return home.

But I had to pass through the novas at my ship's top speed to avoid burning up.

Your ship isn't capable of such a speed.

That's true, Captain.

You are welcome to use my ship, Captain.

I have a crew of 430, Karla Five.

Your ship is suitable for only a few people.

We can't use her ship to transport us, Captain,

but we could use it as an unmanned ship with our tractor beam attached.

It could work.

That's how we arrived here in the first place.

It should work, yes.

But any miscalculation anywhere along the way

and we'll be plunging tail first into a supernova.

Captain's Log, Stardate 6770. 1.

Time continues to flow backward for us.

We have set course for a dead star in this anti-matter universe

that corresponds with the nova Minara in ours.

We're being pulled by Karla Five's unmanned vessel,

which is equipped with enough positive matter armament

to ignite the dead star into life.

We just might get you to Babel after all, Commodore.

I'll be glad to get home, but not necessarily to Babel.

It only means the end of my career, Jim.

Message coming in from Arret, Captain.

I want to wish you luck, Captain.

Whether you succeed or fail, the outcome will remain unknown to me.

Yes, Karla Five.

We'll burn to a crisp or escape into our own universe.

Either way, you'll never hear from us again.

Thank you for the sacrifice of your vessel.

It is a small sacrifice, Captain Kirk.

Success.

Tractor beam working properly, Captain.

We're meeting the speed of Karla Five's unmanned vessel, Captain.

How much time before the youngest crew member

returns to the time of birth?

Eighteen minutes, 37 seconds in real time.

But long before that we shall all be children.

And, Captain, that also means

we are losing our knowledge at an alarming rate.

It is possible we will soon be unable to operate the Enterprise.

How is our course, Mr. Sulu?

I don't know. What am I doing here?

- What is all this equipment? - He's too young, Captain.

Mr. Arex, take over for him.

Lieutenant Uhura, report to navigation console.

I'm sorry, sir. I don't understand all this equipment.

- What do I do with these controls? - Never mind.

Spock, can you fill in for Sulu and Uhura?

Yes, Captain.

- But who will fill in for you? - What do you mean?

At what age did you become a starship captain?

And when did you enter Starfleet Academy?

I see what you mean.

As a Vulcan, I age the slowest.

I will be capable of assuming command longer than anyone else.

But even I will become too young to know what to do.

Captain's Log, supplemental.

We have 11 minutes of real time left to reach the dead star,

but all around my crew are turning into children,

unable to operate the ship.

Ten minutes, 14.21 seconds, Captain.

We shall arrive with only moments to spare.

We will need to disconnect the tractor beam at the appropriate time.

Tractor beam?

- How do we do that, Spock? - Captain, I must assume command.

You are no longer able to command the Enterprise.

Whatever you say.

What shall I do?

Mr. Spock, as long as I am aboard, I am senior officer.

I hate to pull rank,

but you will be capable of command only for a few minutes,

not long enough to complete the maneuvers necessary to take us home.

You are correct, of course.

- Commodore April, command is yours. - Commodore?

I'm Captain April, Mr. Spock.

Robert, we're the only adults on the bridge.

They're all teenagers and children.

Make sure no harm comes to them, Sarah.

We have to ignite that dead star if we're going home.

Mr. Spock, you are still capable of following orders?

- Yes, Captain. - Very good.

Assume your post at the navigation console.

The dead star is directly ahead, Captain,

12 degrees south of galactic plane.

- Arm Karla Five's vessel, Spock. - Vessel armed, Captain.

Nine seconds to impact.

8, 7...

3, 2...

Hang on, we're going right into the heart of the nova.

We did it! We're home again!

We're all right. We're home.

The reverse aging process has stopped.

But the Enterprise crew, they're all children.

They can enter the transporter.

It retains a memory of their original molecular structure.

But what about us?

We don't have to use the transporter.

We can remain young, live our lives over again.

You could command a starship once more.

What a blessing to be able to live one's life over again,

if the life you've led has left you unfulfilled.

No, Sarah, I don't want to live it all over again.

I couldn't improve one bit on what we've had together.

Oh, Robert.

We've received a message from the Federation

that might bring you some cheer.

Lieutenant Uhura, would you relay it to Commodore April and his wife?

In view of Commodore April's heroic actions

aboard the U.S.S. Enterprise this stardate,

we are reviewing his mandatory retirement,

and will consider his appeal to remain Federation Ambassador-at-large.

Well, good.

Just because someone is 75 years old

doesn't mean they're ready to stop giving service to the galaxy!

Arriving at Babel in one hour, 15 minutes, Captain.

I see your flower has blossomed again.

Yes, our trip into the negative universe gave it a second life.

It gave all of us a second life.