A brood of fire-breathing dragons emerges from the earth and begins setting everything ablaze, establishing dominance over the planet.

Denton Van Zan: Envy the country that has heroes, huh? I say pity the country that needs them.
Creedy: Only one thing worse than a dragon... Americans.
[referring to the dragons]
Denton Van Zan: Ever see a male?
Quinn Abercromby: When I'm running for my life I generally don't look back at the plumbing.
[last lines]
Quinn Abercromby: If they come, they'll burn, we'll build. Or maybe I'll just kill 'em.
Alex: And here I thought optimism was against your nature.
Quinn Abercromby: It's a recent development.
Alex: [laughs] Well, here's to evolution.
[after Quinn let Van Zan in]
Creedy: I'm sure you have a perfectly good explanation for this, but I'm buggered if I know what it is.
Quinn Abercromby: He's a Dragon Slayer.
Creedy: What?
Quinn Abercromby: A Dragon Slayer.
Creedy: Oh, he's a Dragon Slayer. I suppose that would make you King Arthur does it?
[after acting out a scene from Star Wars Episode 5]
Child: Did you make that up?
Quinn Abercromby: Of course I did.
Denton Van Zan: The name's Van Zan. Kentucky Irregulars.
Quinn Abercromby: You're a long away from home, Van Zan. You lost?
Denton Van Zan: Rebuilt a National Guard C-5A. Flew it 8,000 miles on 2 engines and tried to set it down on the old strip outside of Manchester. Lost 122 men and most of my fuel. We need shelter and a place to refit artillery. We'll be out of your hair by 1800 hours tomorrow.
Quinn Abercromby: That's a good story. Especially the bit about the plane, but there hasn't been anything in the air for 20 years. That's their territory.
Denton Van Zan: It's my territory. It's *your* territory. Their just rentin' it.
Denton Van Zan: You see they have great vision during the day, and even better vision at night. But in the failing light, they can't focus. Magic hour.
Quinn Abercromby: What do we do when we are awake?
The Children: Keep both eyes on the sky.
Quinn Abercromby: What do we do when we sleep?
The Children: Keep one eye on the sky.
Quinn Abercromby: What do we do when we see them?
The Children: Dig hard, dig deep, go for shelter, and never look back.
[Upon seeing London, totally destroyed by the dragons]
Quinn Abercromby: Well, this town's gone to Hell.
Denton Van Zan: Coffeyville. It's etched in American history because the outlaw Dalton boys were killed there. Ordinary townsfolk rose up and took 'em down.
Quinn Abercromby: Maybe you're the Dalton boys.
Denton Van Zan: No, no... We're the townsfolk.
Denton Van Zan: We're going to London.
Quinn Abercromby: Good luck. It's that way.
Ajay: Forget the bird and use the scope you wanker.
Creedy: [about his homemade liquor] Creedy's own black label. Aged two weeks in a steel barrel. Now, the secret's swallowing fast. That way it only burns your stomach and not your throat.
[takes a gulp and coughs]
Construction Worker #1: Quinn! What are you doing down in the arsehole of the world?
Young Quinn: Well you're passing through it. What does that make you?
Denton Van Zan: [shows dragon tooth] You ever seen one of these? Not many men have. Got it off the first one I killed.
Quinn Abercromby: The plane was better. So now you're a dragon killer. That's not even original.
Denton Van Zan: It was in a wheat field just south of Coffeyville, Kansas. It was late November. It's a month of mist. And we were caught in the open. The sun was setting behind us. There was nowhere to run. Twice it came in on us, and twice it missed the heart of us. And that's when I had an epiphany.
Denton Van Zan: [to Quinn in the castle] I lead, you follow.
Denton Van Zan: [to Quinn in London with Alex] You lead, we follow.
Denton Van Zan: There's nothing magical about it. They're made of flesh and blood. You take out their heart you bring down the beast.
Creedy: Marauders. Years since we've seen them. Well, look at the bright side - at least we're not alone.
Denton Van Zan: These things live on death and feed on ash.
Denton Van Zan: Look out that window, Eden isn't burning its burnt.
[first lines]
Worker #1: Hello, Quinn.
Worker #2: Good morning, Quinn. How's is going mate.
Young Quinn: What's up, guys.
Worker #3: Working the late shift, are ya?
Young Quinn: Ha! Someone's got to clean up after you guys.
Quinn Abercromby: [narration] We have to go on. We have to outlast them. Only one species is getting out if this alive.
Denton Van Zan: We have paid a terrible price, and now we've got a chance to make a difference. We will.
Denton Van Zan: What are you doing here, Quinn?
Quinn Abercromby: You're standing on ground where I've buried hundreds. This my land. I'll ask the questions. What are YOU doing here?
Ajay: Hey, Barlow, I've got voices.
Barlow: Ajay, what are you smokin'?
Quinn Abercromby: That's a big tank...
Quinn Abercromby: Anything happens, you know what to do.
Creedy: Uh no. I have no idea.
Quinn Abercromby: Me neither.
Van Zan: It was your idea to come to London.
Alex: Yeah, well that was at thirty five thousand feet.
Van Zan: Yeah. Well life has a way of turnin' that different though don't it?