Edge of Collapse (2020)

In the dead of winter, an EMP attack destroys the U.S. power grid. No electricity. No cars or phones. And no way to call for help. The country is plunged into instant chaos. But for Hannah Sheridan, it's the best day of her life. For the last five years, she's been the captive of a sadistic psychopath—until the electromagnetic pulse releases the lock of her prison. Battered but not broken, she emerges from her underground cell into a hostile winter wilderness with nothing but the clothes on her back and the determination to survive. Reclusive Spec Ops soldier Liam Coleman is headed nowhere fast. He believed he was prepared for any disaster until the EMP took everything he cared about in a matter of seconds. Two hundred frozen, perilous miles stand between them and their destination in rural Michigan. But the killing cold and desperate survivors aren't the only threats, for Hannah's captor isn't about to let her go... When the country goes dark, ordinary people find themselves facing the end of the world as they know it. With society collapsing before their eyes, they'll have to risk everything to protect their home and the people they love.