success.
We could attempt to find
some humpback whales.
You said there aren't any,
except on Earth of the past.
That is exactly what I said.
Well, in that case...
Now wait just a damn minute.
Spock...
start your computations
for time warp.
Bones, you come with me.
Red alert.
Red alert.
Red alert.
We need that power
to keep medical
facilities functioning.
All underground
storage systems
have been shut down
due to contamination.
Red alert.
Red alert.
Hey, Tom, get those
steel plates in here!
Red alert.
Red alert.
Scotty, how long is this bay?
About 60 feet, Admiral.
Can you enclose it to hold water?
I suppose I could.
Planning to take a swim?
Off the deep end.
We've got to find some humpbacks.
Humpbacked people?
Whales, Mr. Scott. Whales.
About 45 to 50 feet long.
About 40 tons each.
You're trying time travel
in this rust bucket?
We've done it before.
Slingshot around the sun.
Don't pick up enough speed
and you're fried.
Prefer to do nothing?
I prefer common sense.
You're proposing that
we go backwards in time
to find humpback whales,
bring them forward in time,
and hope they tell this probe
what to do with itself.
That's the general idea.
That's crazy!
You have a better idea?
Now's the time.
Computations, Mr. Spock?
In progress, Admiral.
Uhura, get through
to Starfleet command.
I'm picking up a faint transmission.
I think it's Admiral Kirk calling.
On screen.
Starfleet command, this
is Admiral James T. Kirk,
on route to earth
aboard a Klingon vessel.
We have intercepted and analyzed
the call of the probe
threatening Earth.
Satellite reserve power. Now.
Only the extinct species
humpback whale
Can give a proper response
to the probe.
Stabilize.
Emergency reserve.
Starfleet command,
do you read me?
Go ahead. We hear you.
Starfleet command, if you read me,
we're going to attempt time travel.
We are computing our trajectory
at this time... this time.
Get him back. Get him back!
Ready to engage computer, Admiral.
What's our target in time?
Late 20th century.
Can you be more specific?
Not with this equipment.
I've programmed some
of the variables
from memory.
What are the variables?
Availability of fuel components,
vessel mass through
a time continuum,
and probable
location of whales-
In this case,
the Pacific basin.
You've programmed that from memory?
I have.
"Angels and ministers
of grace, defend us. "
Hamlet, act I, scene IV.
No doubt about your memory, Spock.
Engage computers.
Prepare for warp speed.
Shields, Mr. Chekov.
Shields, aye.
May fortune favor the foolish.
Warp speed, Mr. Sulu.
Warp 2.
Warp 3.
Steady as she goes.
Warp 4.
Warp 5.
Warp 6.
Warp 7.
Warp 8!
Sir, heat shields at maximum.
Warp 9!
9.2.
9.3.
We need breakaway speed.
9.5.
9.6.
9.7.
9.8.
I'm o. k.! I'm fine!
Now, Mr. Sulu!
Oh, oh...
Wait. Wait...
Oh, I should
never have left...
Coming up now, sir.
My God, Jim, where are we?
It's the human thing to do.
Spock, you're talking about
the end of human life.
Mr. Sulu.
Mr. Sulu.
Mr. Sulu.
Aye, sir.
What is our condition?
Sir, the braking
thrusters have fired.
Picture, please.
Earth.
But when?
Spock?
Judging by the
atmospheric pollution,
I believe we've arrived
at the latter half
of the 20th century.
Well done, Spock.
Admiral, if I may.
We're probably
already visible
to the tracking devices
of the time.
Quite right, Mr. Spock.
Engage cloaking device,
Mr. Chekov.
We are crossing
the terminator into night.
Homing in on the west coast
of North America.
Admiral,
I am receiving whale song.
Put them on speakers.
Admiral, this is strange.
The song is directly ahead.
It's coming from San Francisco.
From the city?
That doesn't make sense.
Admiral, we have a serious problem.
Would you please come down?
It's these Klingon crystals, Admiral.
The time travel drained them.
They're giving out, decrystallizing.
Give me a round figure.
Oh, 24 hours, give or take,