The Pulse: EMP Post Apocalyptic Fiction

An EMP means the end of the world as they know it for a family who fights to survive.

When disaster strikes in the form of an EMP, Charlie's family flees to their homestead. They fortify their ranch and prepare to ride out the worst of the chaos. Unfortunately, the gang of scavengers who followed them from the city have other plans. How does an ordinary family protect themselves in the wake of violence and chaos?