When forensic anthropologist Zoe Miller stumbles across a murder victim in the blisteringly hostile Sonoran Desert, she triggers a chain of events that puts her in the crosshairs of a ruthless killer. FBI HRT operator Seth Hopper is on secret assignment near the Mexican border when he suddenly finds himself on a rescue mission. The former Navy SEAL is ordered to protect Zoe, whether she likes it or not, which sets them off on a cross-country journey back to Virginia. Zoe has good reason not to trust a man like Seth, but there is no denying the scorching heat that flares between them, hotter than the desert sun. Can Zoe find justice for the murdered woman? Or will the killers close in to destroy them both...