In a world with no power, no law, and no mercy-no one is safe. Months after a catastrophic solar flare destroys the power grid, the residents of Michigan's remote Upper Peninsula grow more desperate by the day. At a crumbling lighthouse on the edge of Lake Superior, Lena and Shiloh Easton carve out a fragile refuge. But when a group of escaped convicts breaks in and steals Lena's insulin, Lena must track them down. Because if she runs out, she dies.Sheriff Jackson Cross has sacrificed nearly eve...