CDR Thomas Chandler, Dr Rachel Scott and others in “Unfinished Business”

I was hoping to get an update on your progress.

Dr Rachel Scott

Well, I have a new plan. I was able to isolate the mutation in Niels' lungs that make him so contagious. And I introduced it to my vaccine. I injected myself with it about an hour ago, and then I breathed on an infected mouse, the same way that Niels used to breath on people as a way to kill them. If this works, if the mouse survives, in effect... I'll be able to breathe the cure onto people. And so will anyone else that I give this new shit to, which means that we won't need any more labs, any more infrastructure, or planes. All our problems will be solved.

Except one. [Inhales deeply] Did you do it?

Scott

[scoffs] Oh, God. Are you really asking me this?

That's exactly what I'm asking you.

Scott

The man who killed five billion people, including your wife and most of your crew's family, is dead. And now his lungs are gonna be used to save the rest of the people on this planet...

Goddamit, Rachel!

Scott

Yes, I did it! And I'd do it again in a beat.

I saw you a half-hour before I left the ship. You told me you were on the verge of a breakthrough.

Scott

I was!

But you didn't tell me you had to kill Niels to do it.

Scott

I was hoping to avoid getting blood on your hands.

I already have blood on my hands. You put it there.