A decorated Army medic and single mother (Michelle Monaghan) returns home from an extended tour in Afghanistan to discover that the bond with her five-year-old son has been shattered. In her absence, the boy has attached to his father (Ron Livingston) and his new girlfriend (Emmanuelle Chriqui). As she struggles to reclaim her son’s affection and reintegrate into civilian life, she meets a mechanic (Manolo Cardona) with whom she becomes romantically involved. Just as her life begins to stabilize and the bond with her son shows signs of healing, she gets news of another deployment. She must now find a way to reconcile her duties as a mother and her obligations as a soldier.