Harrison, Norton and others in “Unfinished Business”

[talking to Norton Drake on the phone] Norton, crank it up, will you? We've got some work to do.

So what else is new?

Well, I need you to access any of Suzanne's research pertaining to the alien growth rate.

Which, I can tell you right now, amounts next to nothing.

I want you to calculate its effect on the human rate of physical development.

OK. You got it.

Good luck.

Listen, while I've got you both, I've been doing some checking of the police reports in the area and I scored. I came across a report, and I quote, of a strange doughnut-shaped corpse of the remains of a human being.

Is that the residue of an alien body transfer?

Yeah.

Where did they find that?

Well, that's the interesting thing. Less than a mile from the hospital. In fact, in the same shopping mall where the paramedics picked up Nancy Salvo.

So we've got an alien saboteur who, in order to avoid capture, takes over the nearest available body which, unfortunately for her, happens to be Nancy Salvo.

The very pregnant Nancy Salvo.

And this takeover creates so much physiological havoc that it triggers premature labor, and the result is the birth of–

A monster. Half-human, half-alien.