What happens when allies can't be trusted? Federal agent Alexis Parker is about to find out. After taking some personal time, Alex is back at work and embroiled in an investigation to uncover a traitor inside the Office of International Operations. Her partner, Eddie Lucca, was assigned to flush out the mole, but this is bigger than just one agent, and he needs Alex's help. Unfortunately, other cases keep getting in the way of their mission. While being tasked with arresting an identity thief, Alex and Lucca take fire. This isn't the first time that federal agents have been targeted, but this is their second close call in eight days. It's clear someone wants Alexis Parker dead and is willing to pay substantially to see it happen. Now the OIO and the local police are in a race to identify the source of the threat and find the evidence needed to bring the party responsible to justice. As usual, nothing is ever simple. The possibilities are endless. With cold cases turning hot and past enemies coming out of the woodwork, it's nearly impossible to identify the source of the threat. Even alleged allies pose a substantial risk when one of Alex's own colleagues is a duplicitous traitor. Lines have been drawn, but the only way to survive may be to cross them.