In the near future, nuclear missiles destroy the world and start a nuclear winter. Thanks to her family's private plane, Coco St. Pierre Vanderbilt (Leslie Grossman) manages to escape the destruction of Los Angeles with her assistant Mallory (Billie Lourd), her hairdresser Mr. Gallant (Evan Peters), and his grandmother, Evie (Joan Collins).
Meanwhile, an organization known as "The Cooperative", selects young adults to save from the apocalypse, based on their genetic makeup. Two of the selected, Timothy (Kyle Allen) and Emily (Ash Santos), are sent to Outpost 3, an underground base led by Ms. Venable (Sarah Paulson). There, they are reunited with other survivors, including Coco, Mallory, Mr. Gallant, and Evie. Life at the Outpost includes strict rules and severe punishments.
Eighteen months pass and the situation and food supplies are at critical condition at the Outpost. A man from the Cooperative, Michael Langdon (Cody Fern), arrives and announces that he will judge who deserves to be truly saved.