Now the human tests show the vaccine and cure works, all crew in injected and the ship seeks a port to organize its mass-production. Their initial choice, a fort, proves deliberately bombed. A radio signal however invites them to the tiny remnant of the US government's HQ in what's left of Baltimore. Acting 'president' Amy Granderson's weakling government offers them suitable facilities, but the ship attracted the lethal attention of a ruthless confederation of warlord-like militias who want to maintain their power and hence the pest-caused chaos. Granderson's state troopers guard proves a poor match.