When a solar storm hits the earth, electrical power is knocked out across the planet, and the blackout could last for years. Soon food becomes scarce, and the rule of law begins to collapse. In their small community, Aubrey and her teenage stepson now face the biggest challenge of their lives.

Across the country, Aubrey's estranged brother Thom, a self-made billionaire, retreats to a desert bunker where he can ride out the crisis in perfect luxury. But the complicated history between the siblings is far from over.

As Aubrey struggles to live, what feels like the end of the world is just the beginning of a long-overdue reckoning , and not everyone can survive…