When Eric O'Neill is promoted from a low-level surveillance job into the headquarters of the FBI, his dream of becoming a full-fledged agent is on the verge of reality. He is hand picked to work for the renowned operative Robert Hanssen within "information assurance," a new division created to protect all classified FBI intelligence. Eric quickly discovers the true reason for his hire: Hanssen is the sole subject of a long-term, top-secret investigation,...