Eldane: This is the story of our planet. Earth. Of the day a thousand years past when when we came to share it with the race known as humanity. It is the story of the Doctor, who helped our races find common ground, and the terrible losses he suffered. It is the story of our past, and must never be forgotten.
Restac: Do you understand who we are?
Rory: Sort of. A bit. Not really.
The Doctor: There are fixed points through time where things must always stay the way they are. This is not one of them. This is an opportunity. A temporal tipping point. Whatever happens today will change future events. Create its own time line, its own reality. The future pivots around you, here, now. So do good. For humanity, and for Earth.
Amy: Right. No pressure there, then.
The Doctor: Okay. Bringing things to order. The first meeting of representatives of the human race and homo reptilia is now in session. Ha! Never said that before. That's fab. Carry on.
Amy: You'll end up killing your own people.
Eldane: Only those foolish enough to follow Restac.
The Doctor: Eldane, are you sure about this?
Eldane: My priority is my race's survival. The Earth isn't ready for us to return yet.
The Doctor: No.
Amy: Ten minutes, Doctor.
The Doctor: But maybe it should be.
Elliot: But where are we?
Mo: Well, I've got to be honest with you, son. We're in the centre of the Earth and there are lizard men.
Amy: Okay, sorry. As rescues go, it didn't live up to it's potential.
The Doctor: I'm glad you're okay.
Amy: Me too!
Rory: Amy, I thought I'd lost you.
Amy: What, 'cause I got sucked into the Earth? You're so clingy.