The Walmart near Piper's house suddenly falls into a sinkhole, but that's just the beginning. Natural disasters are happening all over America; ten times worse than normal. Then, a mysterious group of people called the Saviors run a USA wide message. A Safe House is in each state. People are relieved. But, there's a catch: Only 900 people can fit in each one. America turns to violence. People will kill to get themselves and their families to the Safe Houses. Can Piper and her friends survive?