A woman is killing off int'l bad guys (and witnesses). An ex FBI new man at the American Embassy in Sofia, Bulgaria, is put in charge of investigating the vigilante's actions there.

Field Agent Robert Diggs walked away from his career in the FBI and accepted the position of Cultural Attaché in Sofia, Bulgaria for one reason: to escape the memories of his wife's death for which he blames himself. However, when an unknown vigilante begins killing high-priority terrorists from America's Most Wanted list, the FBI and CIA request he take on the case, and with the U.S. Ambassador's persuasion,