Fifteen-year-old Lark has been taught how to rewire a truck and gut a fish, but she doesn't know the branches of government, the continents on the globe, or really how to read. Lark lives in rural Montana with her conspiracy-theorist-Doomsday-prepping parents who homeschool her. When Lark gets her first period and realizes she doesn't even know how much she doesn't know, she takes advice from a friend on a nearby farm and secretly goes to school for the first time. At high school, Lark finds out the world is very different than she has been told, from 9/11 conspiracies to government takeovers that never happened. The more she learns, the more determined Lark is to expand her worldview. But it won't come without sacrifices.