The devoted daughter of a soldier, thirteen-year-old Sadie is disappointed to learn her father is once again re-deploying rather than returning home. When she sees that her mom is developing feelings for a new man, Sadie channels her disappointment into a fierce new mission, preserve her father's place on the home front, whatever it takes. She has her enemy in her sights, and if there's one thing she's learned from the world around her, it's that the enemy deserves no mercy.