In the post-apocalypse, folks getting by in the Sanctuary (the remains of St. Louis) are surprised when a woman rushes in to report that in the West, civilization flourishes and crops grow. Unfortunately, there's also an army on the march that enslaves everyone it encounters.

"The world Cal and Frida have always known is gone, and they've left the crumbling city of Los Angeles far behind them. They now live in a shack in the wilderness, working side-by-side to make their days tolerable in the face of hardship and isolation. Mourning a past they can't reclaim, they seek solace in each other. But the tentative existence they've built for themselves is thrown into doubt when Frida finds out she's pregnant. Terrified of the...