Shade the young silverwing bat is determined to prove himself on the long, dangerous winter migration to Hibernaculum. But when a fierce storm catches him in its grasp, Shade is separated from his colony and left alone. On his journey back to his family, Shade meets other winged loners. Marina the brightwing bat, Zephyr the mystical albino bat with an unusual gift, and Goth the carnivorous vampire bat. Shade needs all the help he can get, but with a long and perilous flight ahead, how will he know who to trust?