Eighth is a soldier in the Nahx army with one duty: to protect his partner while she kills the humans. Raven is at summer camp when the Nahx invade and begin to destroy her world. After an alien kills her boyfriend, Raven hides in the forest to avoid suffering the same fate. Eighth and Raven fall prey to hate and fear in the midst of such a violent world, but when Raven is severely injured and Eighth abandons his attack unit, their survival will depend on their ability to trust each other.