Sergeant Mac MacKenna retires after 20 years as a pararescueman in an elite special ops unit in the U.S. Air Force and returns to his hometown. Aiding others at all costs is what the air force trained Mac to do - it's all he's known for his entire adult life. Mac admittedly knows nothing about children or school other than he remembers being a child and attending school.

There’s a storm headed for Brookfield—it has more to do with a father’s rage than it does the weather. After someone assaults a teenage girl at a neighborhood party, the victim’s desperate father asks Mac MacKenna for help. There’s a catch—no police. After eight deployments to the middle east and 20 years in an elite special ops unit in the U.S. Air Force, Sergeant Mac MacKenna returned to his hometown to live a quiet life—until the police chief asked him to pose as a marshal at Brookfield Academy where crime outranks grade point averages.

Mac MacKenna, retired USAF Pararescue, expected students and staff to return to Blackstone Academy after spring break relaxed and ready to ride out the end of the school year. He didn’t expect to find an honor student dead on the first day back to school.