Clarke: How long do we have?
Raven: I'd say we have two months of survivability.

The 100 Season 4 Episode 3 Quotes

What if I told you there might be a fallout shelter less than a day's drive from here? A fallout shelter built to sustain thousands.

Jaha

Abby: It's ARS.
Bellamy: What's ARS?
Abby: Acute radiation sickness.