The murder of a Paris bookseller who discovers a manuscript of lost prophecies by Nostradamus sends Nick Carter and Selena Connor of the Project on a hunt for the fabled Ark of the Covenant. The prophecies lead them to the Holy land and deep into the secrets of the Order of the Knights Templar.

The Ark is part of a plan to trigger war in the Middle East. The men behind the plot have no problem killing anyone who gets in their way. Nick struggles with PTSD from his time in Afghanistan. He'll lose Selena if he doesn't find a way to handle it. But how can he find time to sort out his personal life when he's caught up in one of the most dangerous missions of his career?