Chad Huntley can’t get sick. When an influenza pandemic kills almost everyone around him, he finds himself on the run, hunted by soldiers and mercenaries, chased across a wasteland of empty houses and dying suburbs as he tries to escape Fort Worth. Mankind’s only hope is for him to partner with a brilliant virologist to find a cure - but not everyone wants a cure for the greater good. 

Jay Cantrell had the perfect life as a small-town librarian: married just over a year to his second wife, an airline pilot, he also has a daughter in college studying to be an astrophysicist. He's ready to celebrate the first year of his new marriage as he adjusts to an empty nest and a new stage in life. But the sun had other plans and sent a coronal mass ejection as an anniversary present. Awakened before dawn one morning in mid-December by northern lights that blanket the sky - in central Illinois - Jay's world changes in the blink of an eye....

It’s been eight years since an alien invasion drove a small surviving group of settlers to seek refuge in an underground shelter. Cut off from the rest of humanity, the ragtag band has maintained a narrowly functioning colony due to communal effort and salvage runs. Alex Archer has her own duties as a dog handler. While this off-world colony may be harsh, Ash, Alex’s black shepherd raised to sense threats, makes living in it a little nicer.

During the coldest winter on record, an EMP attack wipes out the nation's power and cripples the country. As the city spirals into lawless chaos, an investigative journalist, twenty-six-year-old Cassandra Drews, is forced onto the dangerous streets of Portland to begin the long walk to her parents' home in Oregon. But hypothermia and starvation aren't the only dangers Cass and her rescue dog, Daisy, face on their perilous trek.

Caleb Webb is the dictionary definition of disadvantaged, and surviving on his own is nothing new. When the apocalypse hits, his rugged skill set for staying alive on the mean streets of Los Angeles comes in handy. Unfortunately, he's on a collision course with the worst criminal cartel in the city, unless someone intervenes.