[in the lab]
Bruce Banner: All our work is gone. Ultron cleared out, used the internet as an escape hatch.

Steve Rogers: Ultron.

Natasha Romanoff: He's been in everything. Files, surveillance. Probably knows more about us than we know about each other.

James Rhodes: He’s in your files, he’s in the internet. What if he decides to access something a little more exciting?

Maria Hill: Nuclear codes.

James Rhodes: Nuclear codes. Look, we need to make some calls, assuming we still can.

Natasha Romanoff: Nukes? He said he wanted us dead.

Steve Rogers: He didn't say dead. He said extinct.

Clint Barton: He also said he killed somebody.

Maria Hill: But there wasn't anyone else in the building.

Tony Stark: Yes there was. [Stark bring up the now destroyed 3D image of Jarvis' consciousness]

Bruce Banner: This is insane.

Steve Rogers: Jarvis was the first line of defense. He would've shut Ultron down, it makes sense.
Bruce Banner: No, Ultron could've assimilated Jarvis. This isn't strategy, this is...rage. [suddenly, Thor grabs hold of Stark by his throat and holds him up]

Clint Barton: Woh, woh, woh! It's going around.

Tony Stark: [to Thor] Come on. Use your words, buddy.

Thor': I have more than enough words to describe you, Stark.

Steve Rogers: Thor! The Legionnaire. [Thor lets go of Stark]

Thor: Trail went cold about a hundred miles out but it's headed north, and it has the scepter. Now we have to retrieve it, again.

Natasha Romanoff: The genie's out of that bottle. Clear and present is Ultron.

Dr. Helen Cho: I don't understand. You built this program. Why is it trying to kill us? [Stark starts laughing, Banner subtly shakes his head at him to get him to stop]

Thor: You think this is funny?

Tony Stark: No. It's probably not, right? Is this very terrible? Is it so...is it so...it is. It's so terrible.

Thor: This could've been avoided if you hadn't played with something you don't understand.

Tony Stark: No, I'm sorry. I'm sorry. It is funny. It's a hoot that you don't get why we need this.

Bruce Banner: Tony, maybe this might not be the time to...
Tony Stark: Really?! That's it? You just roll over, show your belly, every time somebody snarls.

Bruce Banner: Only when I've created a murder bot.

Tony Stark: We didn't. We weren't even close. Were we close to an interface?

Steve Rogers: Well, you did something right. And you did it right here. The Avengers were supposed to be different than S.H.I.E.L.D.

Tony Stark: Anybody remember when I carried a nuke through a wormhole?

James Rhodes: No, it's never come up.

Tony Stark: Saved New York?

James Rhodes: Never heard that.

Tony Stark: Recall that? A hostile alien army came charging through a hole in space. We're standing three hundred feet below it. We're the Avengers. We can bust arms dealers all the live long day, but, that up there? That's...that's the end game. How were you guys planning on beating that?

Steve Rogers: Together.

Tony Stark: We'll lose.

Steve Rogers: Then we'll do that together, too. [Stark looks at him for a moment before turning away] Thor's right. Ultron's calling us out. And I'd like to find him before he's ready for us. The world's a big place. Let's start making it smaller.