Clint Redshaw walks into a port facility meeting expecting an ordinary day arguing about the budget. When the shaking starts, he keeps calm. But as the tremors stretch on and on, the ground rips apart, the dock disintegrates, and chunks of land fall into the Strait. When the quake finally ends, there's only one thing on his mind: his daughter. Mika's singing songs and laughing with a gaggle of other sixteen-year-olds as they climb into the Pacific Northwest mountains for a scout weekend. One minute, it's sunshine and good vibes, and the next, it's screaming and chaos.

Terrorists smuggle a nuclear bomb into Washington D.C. and detonate it during the State of the Union Address. Army veteran and congressional staffer Caden Westmore is in nearby Bethesda and watches as a mushroom cloud grows over the capital. The next day, as he drives away from the still burning city, he learns that another city has been destroyed and then another. America is under siege. Panic ensues and society starts to unravel.

Ben Davis was prepared for disaster. He just didn’t know it would come so soon. He and his teenage son, Joel, are miles deep in the backcountry of the San Juan Mountains when high-altitude nuclear electromagnetic detonations light up the pre-dawn sky. Ben, Joel, and their dog, Gunner, must make their way home - or to whatever’s left of it - on foot.

Doctor Anna Hastings is no stranger to disasters, having spent much of her career as an aid worker in conflict zones around the world. Yet when an electrical phenomenon known as an EMP brings down the power grid, Anna faces catastrophe on a scale she never imagined. She must learn what it means to be a doctor in a world deprived of almost all technology.

During the largest winter storm in a 100 years, America is hit with a multi-pronged cyberattack that destroys the power grid, crippling the country at the worst possible moment. Like millions of others, Nate Bauer and his pregnant wife Amy are bracing for the coming storm, when the lights go out. For years, living in the shadow of a nuclear power plant had been a source of employment and security for their tiny community.