A madman is on the loose, seeking to kill his ex-wife and her lover. Josie and her homicide unit are brought in to bring the lunatic behind bars.

Along with Josie's husband Ned Markham (an FBI agent), the Homeland Security ICE force and the Phoenix P.D. bomb squad, they launch a cooperative effort to build a case against the killer and put him away for good. A paranoid schizophrenic, he soon retaliates and engages them on a personal vendetta.

The fourth book in the Josie DuPuy series, H. Berkeley Rourke's Bombs Away, Phoenix is based in the Valley of the Sun in Arizona. Will Josie and her team be able to close the case before it's too late?