Charline Foster was marooned on a desert planet during an alien attack. Taking command of the handful of people stranded with her, she struggles to survive a desolate and hostile world. But the predators stalking them are the least of their worries. The aliens who forced the Satori to flee return, seeking the survivors. Charline must forge her small band into an effective fighting force and engage the enemy. Together, they must strive to do the impossible if they want to ever see Earth again.