The Flash, Season 2

[Using images of Zoom's parents, Barry is able to capture and unmask him]

Hunter Zolomon:
How'd you figure out who I was?

Barry:
You made a mistake: you told Caitlin who your doppelgänger was.

Zolomon:
I had to do something to get her to stop trying to ... fix me. She's a smart girl. [pause] And that I was Zoom?

Barry:
The Velocity-9. When you run fast enough, it turns a speedster's lightning blue. We would've helped you. We would've done anything we could to save your life.

Zolomon:
Not everything.

Barry:
Caitlin found you a cure!

Zolomon:
A temporary one! I'm dying, Barry! There's only one thing that can get me what I need!

Barry:
And you just don't care; how many lives you've destroyed trying to get it? How many people you kill?!

Zolomon:
No, I don't! That feeling was taken from me a long time ago. [longer pause] We're not so different, you know. What happened to us when we were kids; you could've just as easily become me.

Barry:
No. I'd never become like you.

Zolomon:
I gotta say, that was smart, using my parents against me. Ah, family: it's such a weakness.

Barry:
Not for all of us.

Zolomon:
Well, that's where you're wrong. It's time I get what I came for.

Barry:
[chuckles] You're not getting anything from me. You're not getting anything from anybody ever again, on any Earth.

Zolomon:
[quietly] You can't lock up the darkness.

Barry:
What did you just say?

[Zolomon's eyes turn black, and his voice becomes deep and demonic]

Zolomon:
You can't lock up the darkness.