Original subtitles

It was left here for us by Senku's father and the other astronauts.

Our ultimate treasure box,

the Soyuz space capsule.

The spy team actually found it!

The ultimate treasure Byakuya left behind for us: platinum!

Finally, after all this time...

the magic stone that can save all of humanity is right before my eyes.

The platinum is within reach!

It crumbled?!

No, wait...

Even if the metal outer shell was fortified by humanity's greatest science,

it's no surprise that it's falling apart after thousands of years.

But what about the inner layer?

Stone?

There's a ball of concrete in there?

Yeah, assuming anything's left at all.

That would've been the smartest way to ensure it would last for a really long time.

Right...

The record was preserved with a similar method.

They gave us a hint about what to expect!

Of course, with the record, I was able to smash through the stone with force.

But if I were to do that here, in the heart of the enemy base...

The key to saving our friends and all of humanity is so close, yet so far.

B-But with all those enemies crawling around,

she can't risk making noise to break it, can she?

I mean, it's not like there's just some quick and easy way to break it without anybody noticing, right?

If only we had something like a silent bomb...

Doesn't hurt to dream, I guess.

It'd be mighty convenient to have something straight out of some teen's overactive imagination.

Nah, I'm being serious.

Silent bombs are a real thing.

You're telling me silent bombs are real?!

Isn't that name a bit on the nose?!

They were used to break apart concrete in residential areas, where noise pollution was a concern.

"Silent bomb" might've been a brand name, even.

The technical term is "non-explosive demolition agent", though.

That name's pretty darn on the nose, too!

All we have to do is pour this emerald green liquid into this white powder, and then...

A-And then what?!

If you mix them together, are they gonna go boom?

Well, let's try it out and see.

Dude! Are you trying to freakin' kill us?!

It's "silent", remember?

No explosions here.

All it does is make plaster.

Plaster?

You mean that thing used for sculptures and casts and stuff?

All right, listen up, spy team.

Your mission is to crack open that treasure box

and snag the platinum slumbering within.

This crap again?

Rats!

Lots of 'em, too!

Aren't those rats a little strange?

They're not like any rats I've ever seen.

Um...

This is a little embarrassing to ask...

but I'd like to practice my special dance for the master.

Would you gentlemen be so kind as to watch?

Not bad at all!

That's what I call a miracle dance!

Wow...

I need you and Ginro to distract the guards for me.

I ain't too sure about this one, though.

You better start shaking those hips, too!

Yeah, let's see it!

Yes, sir!

I have no idea what the hell I'm doing!

What are these?

See those tools I sent you via the RatC cars?

We're calling them RatC cars now, huh?

Use them to drill holes—the narrower, the better.

This is where your savage strength will really come in clutch, lioness.

For the last time, I'm not a—

Ah, well, guess he can't hear me, anyway.

I'll do this as quickly and quietly as possible,

but it's bound to make some noise.

Hey, do you hear that? Sounds like grinding.

Is it coming from the master's tree?

Oh no! What should I do?

Hey, that's my spear!

Whaddaya think you're doin'?!

U-U-Uh, my spear dance, I guess?

I totally didn't just make that up, I swear!

Nice going, Ginro!

But it's not like you actually know how to dance with a spear, right?

You're incredible!

Where did you learn to handle a spear like that?

Well, I'm the village gatekeeper, so...

I always need to be ready to turn tail and run!

I spent a lot of time practicing these flashy moves so I could confuse the enemy as I escape!

Your moves were pretty impressive, but that explanation is just kinda sad.

Now, you see those tubes I sent you?

Once you're done drilling, place one of each type into the holes.

The emerald green fluid comes straight from the sulfuric acid pool.

The white powder is called anhydrous calcium sulfate.

I made it by heating up sulfuric acid and mixing it in with crushed seashells.

Once a white precipitate began to form, I added more shells and alum in order to...

Ah, guess now's not really the time for explanations, is it?

Not like I'd understand, anyway.

So now I just push it in with this plug, right?

Leave it be for a while, and the chemicals will mix inside the holes and form plaster.

Wh-What happens then?

It grows.

But trapped inside those skinny holes,

Mr. Plaster has nowhere to run.

Meaning he'll shatter the concrete with a force of 300 kilograms per square centimeter!

I stuck the tubes in around noon, so it should be ready.

Time to see if this actually worked.

Senku...

There's no telling what you'll need in the future.

But at the very least, you'll have these rare minerals.

Our treasure box, set aside for you.

Stuffed with gold, diamond,

and of course, platinum.

Senku, one of these days,

I'm certain you'll wake up and revive the entire world with the snap of a finger.

Snap of a finger, my ass.

It's gonna take a ton of patience and hard work.

But you're right...

Someday, it'll happen.

With but a whisper, science will pierce the stone.

We've pried it open with the power of science!

This boulder of a treasure box.

If the Hundred Tales passed down to Ruri are to be believed...

there should be platinum slumbering at the center of this thing.

But finding it and digging it out is going to be quite the task.

Sure, the stone is cracked now, but moving the pieces makes noise, too.

Though, actually, the noise might help me here.

If I hear a strange sound, I'll know I've reached something.

That's too loud!

Huh?

The hell was that?

Please don't tell me I just, like, completely destroyed something inside.

No, I'm sure it's fine!

Oh my God!

It's just sand?!

Wait...

Could it be that the sand itself is somehow valuable?

That's how it always is with Senku, right?

He makes use of tiny fragments of our stone world,

turning them into something helpful through the power of science!

Without even trying, it seems I'm starting to think like a true member of the Kingdom of Science.

Take a look, sir.

Huh?

I guess it just crumbled on its own.

You didn't hear anyone hammering on it or anything, didja?

Damn.

These motors are trash. Just look at how wobbly this axle is.

They worked just fine for the RatC cars, though.

The jankiness was actually a bonus.

Yeah, but we're making a drone now.

It'd fall straight outta the sky.

We really need Kaseki's magic touch here.

We got a RatC car delivery!

Kohaku and the spy team must've found something for us!

I-Is that just sand?

Look a bit closer, though. It has lots of sparkly bits, too.

Gold dust...

Byakuya and his people must've gathered it.

From the rivers on this island, if I were to guess.

Talk about soul-crushing labor, man.

On very rare occasions, gold dust can actually contain what we're looking for.

That's right, I'm talking about...

platinum!

Y-You mean, that tiny little fleck...

...is platinum?!

Is that itty-bitty speck gonna be enough?

It'll be tight, but we work with what we've got.

It would've been nice if we'd had at least a fingertip's worth, though.

I'll just go get some more from the river, then!

Nah, don't bother.

Do you have any idea how rare platinum is?

A single ton of the Earth's crust only yields 0.001 grams on average.

I'm just grateful that we even have a single grain.

It could take a decade to come across one, scrounging around in a riverbed.

It just...

It just keeps coming!

Collecting this much...

must've taken decades.

There was a theory once upon a time.

It stated that if humanity was nearly wiped out, rebuilding civilization would be impossible.

That's because the rare resources close to the Earth's surface

were completely stripped out the first time around.

And without those initial resources to bootstrap itself, civilization would be stuck in limbo.

That's why...

in order to give humanity a shot at starting a new civilization,

I'm gonna gather up as many rare minerals as I can

and leave them for future generations.

Maybe this stuff'll come in handy.

But at the same time, it might be totally useless.

Then why are you pushing yourself so hard, Byakuya?

Why don't you just give it a rest already?

Why?

Isn't it obvious?

Because I'm...

I'm an astronaut.

Earth's very last, in fact.

Working for the future of science is just what I do.

It's my one and only task.

I have to get things ready for my successor, after all.

Time since the petrification: 675,102,440 seconds.

One, two, three, four...

When this body of mine finally gives out,

shove everything I've collected into that round thing over there.

1,014,599,230 seconds now.

One, two, three, four...

Ah, aren't I lucky?

I was fortunate enough to fall forward.

I can catch one last glimpse of the stars on the water's surface.

And though I won't be around to see it, it's your turn to aim for them now.

Senku...

You spent all that time counting the seconds in your head.

Just like your father spent all that time collecting this sand.

Chip off the old block, huh?

You say that, but we're not even related.

Wait, you aren't related?

Does that mean he's not your dad?

All Byakuya would tell me is that I was his best friend's kid.

I never found out the details, nor do I care to.

What does it matter if we're not actually related?

You're right.

It doesn't matter one bit.

Because, in the end, your connection is far deeper than that.

You both share that same tenacious, indomitable spirit.

Yeah, you're absolutely right.

And I couldn't be more grateful for that.

Thanks for your many decades of hard work, Byakuya.

Now, without further ado,

let's make our unlimited revival fluid machine into a reality!

What's going on?

Wh-Wh-What?

Is something wrong? I'm scared!

That pathway leads to...

Ice?

It came from the room made of clear ice!

Ibara-sama.

Well, this is no good. No good at all.

It's almost too much for my old heart to take.

It appears we have some unwelcome guests.

I think this might just be the most science-y looking thing you've ever made!

So now we can free everyone trapped inside the stone, right?!

In theory, yeah.

I have absolutely no idea what I'm looking at here.

Which part has the platinum that your dad spent all those decades gathering?

There it is!

It really is just a tiny bit.

Yep.

The gas just needs to be able to reach it.

Once the ingredients run through this Rube Goldberg machine-looking thing,

our final product is deposited drop-by-drop into the flask at the end.

Of course, I'm talking about our miracle fluid...

Nitric acid.

If I'm being completely honest with everyone,

I still don't really understand what nitric acid is.

But there is one thing I do know:

We fought over it for so very long.

Heck, we even went to war for it.

But we can't call it a "miracle" any longer.

It's now a thing of science, created by your hands, Senku-chan.

All right.

With this, humanity's revival is all but guaranteed.

So how about we kick things off...

by reviving the entire Kingdom of Science?

At long last, on the island where it all began...

we're gonna nab that petrification beam for ourselves!

The final battle's about to begin!

This is gonna be exhilarating!