Bethany McLeod is the Emissary, bringing together the scattered remnants of humanity, in an alliance to save the human race. Raised by Doomsday Preppers, armed with bows and mounted on Spanish mustangs the McLeod sisters prove that not all women are helpless zombie bait.
Beth, with her sisters Alexis, Dani, and Julie made the dangerous journey to Fort Chatten, Kentucky because the struggling Davidson Clan asked for help. They've arrived at Fort Chatten ? to find just how dysfunctional the Davidson Clan is: Their defenses are unfinished, livestock runs loose, there are no crops planted, and their leader has fallen ill.
Alexis McLeod plans to help her childhood crush Tyler Davidson get Fort Chatten on track, but the other Davidsons resist Alexis at every turn. Beth, Dani and Julie do their best to help Alexis prove herself, but time is short.
In a few days Beth must take Dani and Julie back home, along with two men who can barely sit on a horse. What can they accomplish in such a short time?