James Bowers has spent every day for the pasty 40 years on his family’s cattle ranch outside of San Antonio, Texas. It’s hard work, but it’s honest work. And as a fourth-generation rancher, the work is in his blood. But when an EMP is detonated while his wife and son are in the city, rendering all modern conveniences obsolete, James must travel into a chaotic environment filled with danger that will test him in ways that he never thought possible.