The last survivors of an apocalypse that turned the world completely dark sail across the vast night to find more survivors. They use a jerry-rigged radio to piece together the history of this peculiar new world; but the night is sending transmissions of its own, and not all the hitchhikers they pick up are human. The last survivors of an apocalypse that turned the world completely dark sail across the vast night to find more survivors. They use a jerry-rigged radio to piece together the history of this peculiar new world; but the night is sending transmissions of its own, and not all the hitchhikers they pick up are human.