Adam One, the kindly leader of God's Gardeners, a religion devoted to the melding of science and religion, has long predicted that a natural disaster that will alter Earth as we know it. Now it has occurred, obliterating most human life. Two women have been spared, Ren, a young trapeze-dancer, locked inside a high-end sex club; and one of God's Gardeners, Toby, who is barricaded inside a luxurious spa. Have others survived?