After the nuclear apocalypse, the world's chosen elite survive in secure Outposts created by the mysterious Cooperative. On the American West Coast, Ms. Wilhemina Venable (Sarah Paulson) and Ms. Miriam Mead (Kathy Bates) run Outpost Three with an iron fist. The unexpected arrival of Michael Langdon (Cody Fern), a Cooperative representative determined to save society with a secret paradise, throws their order into chaos. However, underneath the surface of humanity's salvation lies a battlefield for the final conflict between good and evil.