2068 1.5 million kilometers above the surface of the Earth Drusilla Xao has only seen a tree in movies and vid-games. She has never breathed air that wasn't recycled, re-filtered, and re-used a hundred times over again. She has never set foot on the Earth. And now she never will. When a terrorist attack by a radical separatist group on Luna destroys the space elevator that had called so many – including her parents – to live permanently in space, Dru is cut off from any hope of ever reaching Earth and her beloved girlfriend, Sarah. The Chinese-American Alliance declares immediate war on the rebels and conscripts everyone they can get their hands on…including Dru. Cast adrift, forced to become a soldier, trapped in a nightmare of vacuum and loneliness, Dru's training will help her survive, but only Sarah will be able to bring her home.