When Joanna Brady's daughter, Jenny, stumbles across the body of her high school principal, Debra Highsmith, in the desert, the Cochise County sheriff's personal and professional worlds collide, forcing her to tread the difficult middle ground between being an officer of the law and a mother. While investigating murders has always meant discovering unpleasant facts and disquieting truths, the experienced Joanna isn't prepared for the knowledge she's about to uncover. Though she's tried to protect her children from the dangers of the grown-up world, the search for justice leads straight to her own door and forces her to face the possibility that her beloved daughter may be less perfect than she seems - especially when a photo from the crime scene ends up on Facebook. A photo only one person close to the crime scene could have taken. As the seasoned sheriff juggles professional constraints and personal demands - budget cuts, new team members, an arrogant coroner, a confused teenager, a precocious toddler, and a high-maintenance mother - she finds herself walking a fine line between justice and family that has never been so blurred.