Don Mann and Ralph Pezzullo’s shockingly authentic army thriller sends Thomas Crocker and his SEAL Team Six brothers to confront a notorious ISIS general, The Viper, during the profession of Aleppo, Syria.

Despite the efforts from the Assad government and its own Russian and Turkish allies, Syria is succumbing to the Islamic State. While Crocker and his SEAL Team Six comrades make an effort to help a little Kurdish border city organize a level of resistance army, he discovers an unexpected reference to Severine, a about SEAL Group Six: Hunt the Viper French epidemiologist working for Doctors Without Borders.

While Severine and her co-workers set up a makeshift hospital in besieged Aleppo, Crocker counsels caution. He understands too well that their NGO status will be no safety from the Viper, a notoriously vicious ISIS general with a deeply personal hatred of the Western. When the Viper’s males kidnap one of Severine’s American colleagues, Crocker will pull every string at his removal to release a rescue objective. But in a scenario where in fact the US does not have any recognized business, he’ll force every boundary of how far he’s willing to go–and how far his SEAL brothers in arms will observe him–to conserve innocent lives.