Seventeen-year-old Vivian Apple never believed in the evangelical Church of America, unlike her recently devout parents. But when Vivian returns home the night after the supposed 'Rapture, ' all that's left of her parents are two holes in the roof. Suddenly, she doesn't know who or what to believe. With her best friend Harp and a mysterious ally, Peter, Vivian embarks on a desperate cross-country roadtrip through a paranoid and panic-stricken America to find answers. Because at the end of the world, Vivan Apple isn't looking for a savior. She's looking for the truth.