Forced to work for an unknown element at the CIA, Victor must take a more reckless approach to his job leaving caution to the wind. The CIA's plan to pit two arm's dealers against each other backfires when an outside foreign intelligence agency steps in and complicates Victor's already near impossible mission. As a result, Victor is forced to kill the team in Minsk that surprises him from behind on the top floor of the Europa Hotel. He has no idea who they are, but after some careful investigating he suspects it can only be one agency. His suspicions are confirmed by Assistant Deputy Director, Roland Proctor, of the CIA Clandestine Operations. Victor is set up at the site of an assassination off the Black Sea near Sochi, placing him in the reach of a dangerous American wet work team. The novel ends in Sofia, Bulgaria when a particularly serious team bent on vengeance kidnaps Victor for interrogation. With his life on the line, Victor must use all his senses and skills to escape their iron clutches or die trying.
A love interest, Adrianna, emerges in this novel, but by the end it looks as though they will be forced to part ways. The Enemy is a solid spy action novel that builds on The Killer and rivals the likes of Vince Flynn. Victor now challenges Mitch Rapp for supremacy.