The X Files1998

[the Cigarette Smoking Man and Dr. Bronschweig climb down a ladder into the cave while wearing bio-haz-mats suits]

Ben Bronschweig, M.D.:
We brought the atmosphere back down to freezing in order to control the development of this latest Purity strain... which is nothing like we've ever seen before.

Cigarette Smoking Man:
Brought on by what?

Ben Bronschweig, M.D.:
Heat, I think. The subsequent invasion of a host, the fireman here, in an enviroment that raised his body temperate above 98.6 degrees.

[they walk into a tent where one of the four firemen infected is laying on a gurney, breathing heavley, near-comatose, his skin black-colored, and hooked up to various I.V. drips]

Cigarette Smoking Man:
This man is still alive.

Ben Bronschweig, M.D.:
Technicaly and biologicaly... yes. But he'll never recover.

Cigarette Smoking Man:
How is this possible?

Ben Bronschweig, M.D.:
Look... [he points to the alien embryo forming in the fireman's chest seen through the skin which is pulsating] The developing organism is using his life energy. Digesting bone and tissue for itself to grow. We've just slowed the process. [pause] You want us to destroy this one too before it jestates?

Cigarette Smoking Man:
Uh... no. Not yet. We need to try our vacine on it. We need to see if it will work in this advanced state.

Ben Bronschweig, M.D.:
And if it's unsucessfull?

Cigarette Smoking Man:
Burn it... like the others.