By the Time I Get to Dallas #1

Disaster Page
When 80% of the human race starts migrating to a single point on the globe, failing medical student Rudy Deckart sets out across the disintegrating US to rescue his girlfriend, become a doctor, confront a murderous militia using the migration to start a new world order, and find a cure for the migration impulse that will save, or maybe destroy, humanity. In Book 1, Rudy thinks he's on top of the world, but that world is collapsing all around him.