Walter, Olivia and others in “Unfinished Business”

Walter

[to Peter and Olivia on the phone] You said that Agent Broyles was on site. Is he evacuating the area?

Olivia

Yes. One square mile from the center of the beam.

Astrid

Okay, Walter, the geologicals are coming in.

Walter

[retrieves printed document] Oh no.

Olivia

Oh no what?

Walter

I know I read something about this. Three months ago a subterranean oil reservoir was discovered below Beacon Hill.

Astrid

What does that mean?

Walter

Imagine putting a match to a can of lighter fluid. Unless we stop this soon, the sunbeam will essentially set Boston on fire from below. Peter, you should alert Agent Broyles. Tell him he will need to evacuate an area with a radius much wider than a mile.

Peter

How much?

Walter

All of it.

Peter

All of what?

Walter

Boston.

Peter

We'll call you back.