In the Blue Ridge Mountains of Virginia, the FBI intercepts an arms deal. One agent is dead and the agent in charge quits. The arms dealer, who works for a Russian warlord, escapes. He possesses an icon that comes from the time of the Byzantine empire, stolen from the Vatican in WWII, and containing a Nazi secret from the occupation of Italy. The secret the icon contains is a bank code to Swiss accounts. The Vatican learns of the icon's existence and wants it recovered and sends Jonathan McGregor after it. The Director of the FBI enlists Matt Higgins to form a special operations unit to track down and destroy the arms dealer selling to homegrown jihadists. Matt recruits his old army comrade, Bridget Donavan, and together they form a plan to capture the arms dealer. An addition, they will retrieve the icon from him, which will redeem Bridget from a death threat. Nothing ever goes as planned.