A revolutionary technology for infrastructure repair has destroyed the world. Now almost everything is covered in regenerating asphalt. Mass extinctions, global warming, and an ever-worsening lack of atmospheric oxygen have left humanity confined to isolated outposts built by the world's militaries during the early stages of the spread.

Lavinia is a biological construct built and powered by the same nanorobotics that have brought life to the world's roads and parking lots. Her goal is to reverse the apocalypse, and she may have finally found some allies who can help her complete her mission.