Humanity survived the Long Winter – but only just. We rebuild, watching the sky, waiting for any sign of the Grid's return.
When NASA discovers that three vast asteroids have broken from the Kuiper Belt and are on an impact course for Earth, we have to face the truth: the Grid is back. And this battle will be to the very end.
As we prepare our last stand in space and on the ground, humanity splinters. Factions form, trust evaporates. And yet not all is lost. Dr James Sinclair has a plan that could ensure the species' survival. But it comes with enormous risks. Implementing it means navigating a course between the Grid and another, even more deadly enemy. One thing is certain: Sinclair's gambit will change the future of the human race forever.