BARRY: My name is Barry Allen, and I am the fastest man alive.
To the outside world, I'm an ordinary forensic scientist,
but secretly, with the help of my friends at S.T.A.R. Labs,
I fight crime and find other meta-humans like me.
I hunted down the man who killed my mother,
but in doing so, I opened up our world to new threats.
And I am the only one fast enough to stop them.
I am The Flash.
JOE: Previously on The Flash...
How many more terrible things are you gonna do to protect me?
That's my job. That's all that matters.
JESSE: It's my turn to go out on my own. Don't come looking for me.
Everything seems to be telling me that Barry and I are meant to be together.
Somebody, please help!
ZOOM: There's only one person who can help you now.
The Flash.
Barry, I know you can't give up your speed to that monster...
That's not your decision.
Hand him over and it's yours.
HARRISON: He's slowing down.
CISCO: He's becoming human again.
- (ELECTRICITY CRACKLING) - (SCREAMING)
(BOTH GRUNTING)
I know some piece of you did care for me. Please, let him go.
Caitlin!
BARRY: It's a regular day in Central City.
Nothing out of the ordinary.
(ALARM BEEPING)
People wake up, roll out of bed,
suit up for the day.
Get to work as fast as they can.
Make sure they get a caffeine fix along the way,
so they can make it through the mountain of work that awaits them.
(GRUNTS)
(SNIFFS)
(SIGHS)
- (BABY CRYING) - (MAN GIGGLES)
(VIDEO GAME BEEPING)
Yeah.
(INDISTINCT CHATTER)
BARRY: Yep, it's just a regular day.
- (GLASS SHATTERING) - (SIGHS)
And I'm just a regular guy.
I really wish we didn't have to keep Jay's helmet around.
- I hate this thing. - Well...
CISCO: Just wanna put a dent in it.
Cisco, did you see Caitlin in your vibe?
Zoom's got her in his lair. She's scared, but she's okay.
Thank God. All right, we need to get her back.
I know, but without your speed,
there's no way any of us can get through that breach
that Cisco found at the hospital.
I just don't think there's anything we can do right now.
That's right. And it's thanks to you, Allen.
Enough, we're all suffering here.
That's right, that's right, Detective. We're all suffering.
We've lost Snow, you've lost your speed, and now? (LAUGHS)
Now, Zoom can come through that breach any time he wants.
And that, Allen, that's on you.
Hey, that's on all of us, okay? We made these decisions as a team.
No, we didn't.
And where are you going?
I'm gonna go find Jesse before Zoom does. Again.
Wait, you found her? How?
Cellular dead zones, Ramon.
People from my Earth
vibrate at a different frequency than people from your Earth.
They leave cellular dead zones wherever they go.
That's why I'm always dropping calls around you?
Okay, so, wait. How did that help?
I track the dead zones created by Jesse since she got here
and I follow the trail, it's easy.
What? So, you think you're gonna need that gun
to convince her to leave with you?
You're full of questions today, aren't you, West?
The gun is not for my daughter.
She's not the only person from a different Earth hiding out on this one.
If I run into them, I'm gonna need this.
Okay, but you're also gonna need some help.
Really?
You know anyone with the speed to help me, Ramon?
Well...
Great. I'll be in my workshop.
Don't listen to Wells, Barry. This ain't all on you.
Yeah, I know.
You need a ride back to the station?
No, I'm good. I'm gonna stick around, actually.
Finished all my cases this morning.
Damn, that was fast.
That was a poor choice of words.
You do know it's okay to ease back into the way you used to do things, right?
Well, this is the only way I can fight crime.
If I'm not The Flash, that's what I gotta do.
(DOOR OPENING AND CLOSING)
You need to eat.
Caitlin.
If you wanna speak to me, then take off that mask.
Does this make you feel better?
Nothing you could ever do would make me feel better.
You don't need to be afraid.
I'm not gonna hurt you.
I care too much about you to do that.
You only care about yourself.
Hunter.
You're gonna wanna see this, son.
ASHLEY: No!
I know you think that I'm a monster.
I understand why.
(SIGHS)
But that'll change.
- Please, Cait. - Do not call me that!
Why are you keeping me here? You're cured. You don't need me for anything.
You're here because I love you.
It may take a while, but someday
you'll start feeling that way about me again, too.
Make yourself at home.
(RATTLING)
You're gonna be here awhile. Okay?
(EXHALES DEEPLY)
(METAL CLAN KING)
(SIGHING)
(CAITLIN SIGHS)
(TAPPING ON WALL)
I don't understand.
Well, hello, doppelganger of mine.
What do you know,
I can still pull off brunette.
- WALLY: Dad. - (ELEVATOR BELL DINGS)
Oh, hey, son. What a surprise. What's up?
Uh, I, I wanted to ask you about something. Someone, actually.
Uh... The Flash.
What about him?
Well, he showed up at my street race when Iris got hurt,
then when that man-shark thing attacked our house.
And when Zoom took me, he said someone The Flash knew cared about me.
Yeah, it doesn't take a genius to figure out that that's you.
If you want me to tell you who he is? I can't do that.
No, I know, I know.
I was actually hoping that you could set up a meeting for me.
A meeting? Between you and him?
I... (SIGHS) I don't know if I can do that, either, Wally.
Well, why not?
Joe? Singh wants to see you.
- Okay. Um... - (WALLY SIGHS)
Look, maybe one day, but not now.
Look, I gotta get to work.
See you at home? All right.
(EXHALES DEEPLY)
(KNOCKING ON DOOR)
The laser tag club's in 2D.
The? Oh, no. Uh, (LIGHT CHUCKLE) I'm looking for Jesse.
Come on in.
Thanks.
JOHAN NA: Jesse!
You're the first person who's ever come to visit her.
- What? Oh. - How'd you find me?
Jess. Uh, cellular dead zone.
I told you I'd find you wherever you went.
JOHANNA: Wait, so, you're a runaway?
- So you're her dad. - (HARRISON INHALES DEEPLY)
Great. Let me know if I need to find a new roommate.
Listen. We need to go.
So, what? You think I'll be safer with you?
Yes.
(INHALES DEEPLY)
Yeah, I think I'm gonna pass.
Jesse, we need to leave.
No. Okay? No, I'm not going anywhere with you, ever again.
You are...
You're in danger. Do you understand? You're in grave danger.
I know! I'm in danger because of you.
- Because of me? - Yeah!
Okay, everything that's happened, it's your fault.
Zoom hunting us, the metas, moving here.
I'm done with it, okay? You wanted me to start a new life
and that is exactly what I'm trying to do.
- No, Jess. Jess. - You killed a man!
I can't just forgive you for that.
And I may be afraid of Zoom, but... I am just as afraid of you.
Please, just go.
(DOOR SLAMMING SHUT)
(CLEARS THROAT)
(BRAKES SCREECHING)
(GLASS SHATTERING)
(METAL CLATTERING)
MALE NEWSCASTER: And a new report shows that petty crimes have risen slightly,
sparking concern that The Flash...
Don't watch that.
Cisco, everybody's gonna realize sooner or later,
that I don't have my speed.
The later, the better. The last thing we need,
is every criminal in this city thinking they're untouchable, right?
(BEEPING)
- What is that? - Case in point. (SIGHS)
What? What is that?
- It's Harry. - What about Harry?
The camera in the lab van recorded an accident.
See, this is my version of Crash Assist.
It's like those Russian dash-cams, but, you know,
without attack helicopters and bad pop music on the radio.
(BARRY SIG HS)
That does not look like an accident.
First, Caitlin's taken. Now, Wells.
(COMPUTING)
CISCO: This is where he got taken,
but there aren't any traffic cams in that area.
I'm gonna head out there, see what I can find.
I'll analyze this footage and see if we can figure out who this is.
All right. Wait, uh, where's the last place the van stopped?
Woodman and Shore for about 15 minutes before heading back to Central City. Why?
That's where Jesse must be.
She should know if something's happened to her dad.
Iris, hey. Need your help with something.
You're Killer Frost.
And you're Caitlin Snow.
Your little friend Cisco wouldn't shut up about you.
Made you out to be some kind of a saint.
So, tell me. Why hide the girls?
I mean, you've seen our body, right?
(TAPPING)
If I could get my powers to work through this carbyne wall,
the first thing lwould do is shut him up.
Who is he?
Don't know, don't care.
But if he's here, Zoom must need something from him.
So, what does Zoom need you for?
That is an excellent question, Caity.
You know, I've been asking myself the same thing.
But doesn't matter now. I'm not gonna stick around much longer.
Wait, I thought you said your powers don't work inside this cell.
They don't, you're right.
So, you're gonna help me get out of here.
Why would I help you?
Listen, honey, there's no way
you are making it down that cliff all by yourself.
So, let's make a deal.
You get me out of this box, and I'll help you get home.
Might even throw in some wardrobe tips for free.
So, what do you say, Caitlin? Do we have a deal?
(IRIS SIGHS)
I don't understand.
There's nothing around here. What did the van hit?
(BARRY SIG HS)
I don't know.
Something strong enough to exert an equal amount of force back on the van.
Someone was definitely here, though.
You think maybe a meta-human?
Yeah.
And if it's a meta that's after Wells...
Then they could be from Earth-2.
Probably.
We gotta get Jesse, find Wells. Fast.
(HANDCUFF BEEPING)
(GROANS)
(HANDCUFF BEEPING)
GRAY: Dr. Harrison Wells.
Yeah. And who are you?
Name's Griffin Gray.
Griffin Gray?
Do I know you?
No. But you should.
I'm one of your mistakes.
One of your sins coming home to roost.
All right, you think I...
I'm from... I'm not who you think I am.
I know exactly who you are!
(SCOFFS)
And you're gonna fix what your particle accelerator did to me.
What did the accelerator do to you?
(METAL CRUSHING)
(METAL CLAN KING)
That.
Well, that's impressive.
And all things considered,
I don't know that having that kinda strength
is the worst thing you could have been given.
Yeah, that's what I thought at first. And it was a lot of fun.
Till I learned it did something else to me, too.
That's me.
Last year.
You're... You're aging.
If this keeps happening, I'll be dead in a few months.
How old are you, Griffin?
I'm 18.
(SIGHS)
Look.
I'm sorry this is happening to you. There's nothing I can do to fix it.
Well, that sucks.
'Cause if you can't figure out a way to help me, Dr. Wells...
You're gonna die soon, too.
I never should have left.
No, this isn't your fault.
D0 you know who took him?
That's where things get interesting. That fingerprint that you guys brought in?
- The one from the van, I mean. - BARRY: Yeah, yeah.
- (SYSTEM COMPUTING) - Belongs to this guy.
Griffin Gray. A senior at Central City High School?
No, wait. I've seen this kid's picture before.
He went missing like six months ago.
That's right.
That doesn't make any sense. An 18-year-old didn't kidnap Wells.
That's what I thought at first, but feast your eyes on this.
(SYSTEM COMPUTING)
IRIS: Wow!
It's the same guy!
Yeah, the blood sample confirms it.
How is that even possible?
I'm not sure yet. Without Caitlin here, I can't really analyze the cells
on a molecular level to see what we're dealing with here.
You know, I might actually be able to help.
- How? - Bio-chem was one of my majors in college.
One of your majors? How many did you have?
Five.
What? ls that not common here?
Girl, no. That is not common anywhere.
All right, let's search for that Gray, see what we come up with.
I'll see if facial recognition brings him up
and I'll have Joe check C.C.P.D.'s database.
Cool. Let's see what you can do.
(CHUCKLES NERVOUSLY)
Tick-tock, tick-tock.
CAITLIN: (GRUNTS) I'm going as fast as I can.
FROST: Well, you'd better go faster. Zoom will be back any minute.
CAITLIN: I could just leave you in there, you know.
FROST: Oh.
But you want to go home so badly.
So, how did this happen to you?
Woke up one day,
cold, pale,
thought I was sick.
Turned out it was something else entirely.
(ICE CRACKLING)
You got hit by the dark matter from the particle accelerator explosion?
Yes. Right after I flunked out of med school.
Had to move back in with my mother.
That couldn't have been fun. If she's anything like mine, I mean.
Why, is yours a frigid narcissist, too?
Cold as ice.
Yeah, Mom was like that ever since Charlie died.
Who's Charlie?
My brother.
I never had a brother.
No? Then why was Mom such a bitch on your Earth?
Honestly, I couldn't say.
So, how is this going to get me out of here?
The electrical current in the cable should heat up the carbyne,
which, in turn, should speed up the electrons.
And the faster they go...
The weaker its molecular structure becomes.
Exactly.
Hmm.
I studied every once in a while.
Well, when it gets hot enough,
it should make the carbyne as fragile as glass.
And then we can both get out of here.
(BANGING ON DOOR)
Wally.
Hey, Joe.
What's up? You look like you got something on your mind.
Yeah, I do.
Please don't tell me you drove all the way over here to ask about The Flash again.
(EXHALES DEEPLY)
It's not happening, Wally.
Wha... It's just one time, that's all I'm asking.
It's impossible.
He saved my life, Joe. I owe him a thank you.
Look.
I've been reckless my whole life.
Racing cars, pushing limits.
I did everything at full speed without a care in the world.
But it wasn't until Zoom took me,
that I really thought I was gonna die.
And I was going to die if The Flash didn't do what he did.
He gave up his powers to save me, a guy he didn't even know.
No one's ever done anything like that for me before.
I need to tell him how much that means to me.
Well, all right.
Uh.
Just give me a little while, I'll see what I can do.
(CELL PHONE VIBRATING)
I gotta go.
(EXHALES DEEPLY)
(BOTH LAUGHING)
Hey, Dad.
Thanks.
- Yo. - In here.
I got your text. What's up?
All right, facial recognition just picked up Gray
breaking into Ace Chemical down on Newbury Road.
- Is my dad with him? - I don't know yet. But we have to go.
- Uh, you sure about that? - BARRY: Yeah, I'm sure.
Look, we can'tjust sit here.
Regardless of whether I have my speed or not,
I have to try to help, that's never gonna change.
(SIGHS)
Okay. I'm with you, but we're gonna need some backup.
- Joe's on his way. - And I'm coming with.
No, look, uh, pleasejust stay here.
We don't know what we're dealing with yet.
Just finish running the tests on the blood sample.
I'm sorry. Thank you, Jesse.
(EXHALES DEEPLY)
JOE: Griffin Gray, C.C.P.D.! Stay right there.
BARRY: The man that you kidnapped, Harrison Wells.
You need to let him go.
I can't do that. Not yet.
- Then we'll have to do this the hard way. - (GUNS POWERING UP)
GRAY: I guess so.
(BARRY EXHALES SHARPLY)
Okay, He-Man's got some power.
(GRAY GRUNTING)
And accuracy.
- All right, keep him distracted, okay? - What?
Barry! Barry!
GRAY: Ican do this all night.
(GRUNTS)
JOE: We just want Wells. Just let him go!
Not until I'm done with him!
- (METAL CLANKING) - (GRAY GRUNTING)
(GRUNTING)
(GROANING)
Too slow.
- (FOOTSTEPS APPROACHING) - (GROANS)
- Barry! - Hey.
I think I need some medical attention.
(GROANS)
So, his genes have actually mutated.
I ran the DNA from the blood sample Barry found
and the functional myostatin in his cells is essentially gone.
I mean, giving him super-strength.
Guys, there's something else. Um, I saw him age. Right in front of me.
Yeah, he's suffering from oxidative stress.
It means the protein and the DNA in his body are being ravaged by oxidants.
So, what? He needs to up his blueberry intake?
(CHUCKLES) No, it means, the more he exerts himself, the faster he ages.
So, if we can get him to exert too much energy, then...
Then he'll become old and weak.
JOE: And how do you think we're gonna do that?
I can't watch you be a human punching bag until he turns into Grampa Simpson.
CISCO: I think we can fix that.
Jesse, I'm gonna need some of that quick thinking of yours.
Iris.
I gotta get back to the station.
You Okay?
(SIGHS)
No, not really.
You know, you were the first person I saved after I got my powers.
(CHUCKLES SOFTLY)
We were (INHALES DEEPLY) out on a walk
and we were talking about Eddie
- Hmm-mmm. - And how you were with him,
and I was thinking to myself how I'd missed a lot while I was in that coma.
And then, all of a sudden, those cars came at us,
and it was like the world froze.
Like you and I were the only two people in the world.
I didn't even know what I could do yet. But I knew that I could save you.
And I did.
(SIGHS)
And now, I don't know, I don't...
I Just don't even know who I am anymore, or who I'm supposed to be.
(SCOFFS)
Barry, you're supposed to be the same guy that you've always been.
Suit or no suit,
that guy is a hero.
(CHUCKLES SOFTLY)
GRAY: That's everything you asked for.
How do you sleep at night,
knowing you've destroyed so many people's lives?
I don't.
Do you have anyone in your life that you care about?
I have a daughter.
GRAY: I used to have someone in my life that I cared about.
My girlfriend, Jenny.
We were gonna get married, have kids someday.
But after I got hit by that wave from the particle accelerator,
all my dreams ended.
You know, I see her sometimes, walking down the street.
She doesn't even recognize me. Why would she?
I look as old as her dad.
You robbed me of her.
Griffin, stop talking. So I can concentrate.
Wake up, man. This city is screwed up because of you.
It was quiet and normal,
until you rode in on your high horse
talking about science and changing the future.
You didn't stop to think
about what your particle accelerator could do to others.
You only thought about what it could do for you!
Enough!
(OBJECTS CLATTERING)
Enough.
I hope it was worth it, "Doc."
CAITLIN: Stay away from the wall.
Let's give it a whirl.
- (ELECTRICITY CRACKLING) - (GLASS SHATTERING)
(GRUNTS)
(GASPS)
(EXHALES SHARPLY AND CHUCKLES)
Well, looks like you have a little badass in you after all.
(KNOCKING ON WALL)
(SIGHS) What are we gonna do about this guy?
Oh, Caity, I don't think he's ever going home,
- and neither are you. - (KNOCKING ON WALL)
(CAITLIN GASPS)
What are you doing? (GRUNTS) I thought we had a deal!
Oh!
Is everyone on your Earth this gullible?
(GRUNTS)
Heels aren't the best on ice, are they?
You know, once I saw you, I realized why Zoom didn't kill me.
Because I lookjust like you.
Now, he won't need me anymore.
(ICE CRACKLING)
(ELECTRICITY CRACKLING)
(GASPS AN D GRUNTS)
(GASPS)
No, I don't.
Try that with him, he dies, too.
I'm not picking up anything from facial recognition.
(SIGHS) The only cellular dead zone I can find is the one in here. No offense.
No, wait a second, was he wearing his watch when he left to get me?
I already tried that. GPS isn't working.
Okay, no, but the meta-human activity would be.
I mean, the watch is designed to track metas, right?
And since Griffin Gray is one,
it'll keep sending a message to a sewer until it goes through.
But since we're on a different Earth, it'll never go through.
So itjust keeps sending the same signal.
- (SYSTEM COMPUTING) - (JESSE CHUCKLES)
There he is, Central City Amusement Park.
Yeah, and I'm coming with, this time.
Okay, great, we found Harry, but how are we gonna stop Gray?
(LAUGHS) I'm so glad you asked.
Jesse and I upgraded the internal lining of the suit.
Felicity hooked us up with some dwarf star alloy.
IRIS: Wait, dwarf star alloy?
It's the same compound that's used to protect Ray's Atom suit.
That's right. Super strong, super lightweight.
Only thing is, we couldn't get much of it.
All right, what does that mean?
We could only cover the chest portion of the suit.
- Oh. - Yeah, sorry.
CISCO: Uh, here's the other thing, probably not a big deal.
Um, I'm guessing the suit will only absorb
- one of Gray's punches. - Hmm!
Anything more than that, you'll be like a pinata,
only it won't be candy coming out. It'll be...
- Me. - Your... Yeah, you.
(SIGHS) Yeah. All right.
Hopefully, one gimme punch is all I'll need.
(BREATHES DEEPLY)
All right, then.
Finished.
This is gonna cure me?
As we say in science, I'm cautiously optimistic.
You know, I learned a lot about chemistry in the past two years.
That right?
And I know all you've been doing
is diluting that compound for the past half hour.
You don't know how to help me, do you?
There is no helping you.
- (YELLING) - (GLASS SHATTERING)
I told you you were gonna fix me, or you were dead!
(GROANS)
(BEEPING)
CISCO: Why is it that bad guys always insist on having the creepiest hideouts?
JOE: Because they're crazy.
BARRY: Right.
(SYSTEM BEEPING)
Hey, Barry, Gray's headed your way.
All right, come on. Hey, come on. (SIGHS)
CISCO: You ready?
Okay, Iris. On my mark.
Three...
Two, one. Now!
(GROANS)
(BARRY GRUNTING)
Is that all you got, Flash?
We just want Dr. Wells.
And I wanted him to fix me, but he can't.
So once I finish you, I'm gonna finish him.
JOE: Freeze.
(BULLET RICOCHETING)
(GRUNTING)
Come on!
You Okay?
(BREATHING HEAVILY) Come On.
Okay, I think, one more punch and we get this guy a walker.
IRIS: Hey, guys, we got him. He's over by the Ferris wheel.
- (POWERING UP) - (GROANS)
(BOTH GRUNTING)
Look, we can help you.
GRAY: It's too late for that.
Not everyone got the powers you did, Flash.
Some of us weren't so lucky.
(GRUNTS)
That was the "gimme."
(PANTING) Griffin, please, stop.
I might be getting older, but I'm stronger than ever.
(YELLING)
(INHALES DEEPLY)
(GRAY GRUNTS)
Barry!
(EXHALES DEEPLY)
You Okay?
Oh! Yeah, I'm good.
(GRUNTING) Could've used more of that dwarf star alloy.
(SIGHS)
ALL: (BREATHING H EAVILY)
I'm so sorry.
(BREATHING HEAVILY)
I'm sorry, too.
(JESSE SOBBING)
(JESSE swans)
Oh! Home, sweet home.
Yeah, well.
To be honest, hasn't felt much like a home in a while.
At least, certainly not since you left.
Yeah. Look, I'm sorry, Dad, forjust leaving like that.
But... I mean.
You have to understand. I'm the reason you killed that man.
And that's a really heavy burden to bear.
(SIGHS)
I know.
I know. I also know that what I've done, it's unforgiveable.
(SIGHS)
When your mother died, honey,
something inside me broke.
I couldn't protect her.
And I swore, I swore on her grave, no less, that I would protect you.
And then Zoom took you and I snapped.
I just snapped.
I couldn't breathe, I...
I couldn't lose the only other person that I love.
Yeah, yeah, I get that.
I understand why you did everything you did to protect me.
I mean, you were only missing one day
and I would have done anything to find you.
(CHUCKLES)
But... I mean.
I need to know that that's never gonna happen again, okay?
Every time I stay out late, or get in trouble,
you can't track me down, or hurt someone 'cause you're trying to save me.
Yeah, but you're in danger.
- I know. - Okay.
I will make you a promise.
I promise you I will be the kind of father that you can be proud of,
if you promise me you will never run away from me again.
(LAUGHS) Okay. Okay, deal.
I love you, Dad.
I love you too.
My little Jesse Quick.
(LAUGHING)
Relax, he'll be here.
What should I say? I mean, I don't even know where to start.
Just be honest. Speak from your heart.
Okay.
THE FLASH: Wally West.
I'll see you at home.
You wanted to see me.
Uh, yes. ldid. I mean, I do.
(CHUCKLES SOFTLY)
Um... (CLEARS THROAT)
I just wanted to thank you for saving my life.
And I know that that came at a huge price for you.
And I don't know how I'll ever repay that.
I guess what I wanted to say was that
I'm not gonna waste this chance that you've given me.
Thank you.
You're welcome, Wally.
(SIGHS AND CHUCKLES)
JAY: You okay?
Stay away from me.
Killer Frost tried to kill you, Caitlin.
I saved your life.
You should thank me.
I just wanna go home.
No. Stay.
I want to leave!
JAMES: (ECHOING) Stay, boy!
ASHLEY: (ECHOING) No!
Please, take me back to my Earth.
You know,
I've always measured my success by counting the number of victims I've had.
But now I think I'm gonna widen my scope
and start counting the number of Earths I conquer instead.
You wanna go home?
Let's go. After all,
this Earth has already been brought to its knees.
Well, you're here early.
Yeah, I couldn't sleep.
Me, neither.
I know that we just took down Gray without my powers, but...
I have no idea how to get Caitlin back without them.
We can't, Allen.
Then what are we gonna do?
Gray...
Gray kidnapped me
because he thought I was Harrison Wells from this Earth.
I know he was talking about another guy, but I just...
I can't help but think. I still haven't paid for what I've done.
What does that mean?
(SIGHS)
I thought, you know, when you... When we closed the breaches,
I could just forget about everything I've done, but I can't.
I realize what I can do.
You are gonna get your speed back, Allen. And I'm gonna help you do that.
How?
(CHUCKLES)
By creating another particle accelerator explosion.