High school custodian Frank Batch's life begins to unravel when the grumpy (and alcoholic) cleaner becomes the unlikely hero in a tragic school shooting. What does it mean to be good? Does society even want heroes? Hounded by the media and put back in contact with his estranged ex-wife and daughter, Batch navigates these new waters of popularity the only way he knows how: with disregard to empathy, and a terrible attitude.