It is five years since a global vote elected an AI leader, Solomon, to give humanity one last chance of survival in the face of crippling climate change. The world might be in recovery, but humankind is suffering—and rebelling—under Solomon’s governance. The choice was far from unanimous, and resentment is running high. As acts of sabotage and civil disobedience increase, a disgusted Solomon offers the people of the world a final choice: Upgrade or Unplug. Upgrade means irrevocably merging with artificial intelligence as a way of deleting the destructive nature of the species. Unplug will brick every chip, including Solomon himself, and humanity will begin again in a pre-digital age. Humanity has eighteen days to decide before civilization tips over into complete anarchy. One vote. No appeal. A simple majority wins. How will humanity vote this time? And how much choice do they really have?