F.X. Shepherd is juggling a new job as a PI, while keeping up with his strangely popular pet column. He is hired by a congressman who has received death threats, part of the escalating war between the Republican Party and Tea Party extremists. A series of murders of gun rights politicos at a presidential convention ratchets up the stakes, and Shepherd must fight off his liberal parents, do-anything-for-a-story reporter Jeannie Mac, and a gang of mysterious gunmen.