A group of friends' summer roadtrip to a secluded mountain hot springs gets interrupted by the arrival of a stranger.

At a beachside resort in 1980 Florida, twenty experts gather for a weekend conference on a global issue that is starting to gain traction: the effects of Co2 emissions on the climate. This group of scientists, activists, and policymakers have one simple mandate from Congress — write a statement about what to do. Easier said than done.