Eric O'Neill, a computer specialist who wants to be made an agent is assigned to clerk for Robert Hanssen, a senior agent with 25 years in the FBI, and to write down everything Hanssen does. O'Neill's told it's an investigation of Hanssen's sexual habits, however Hanssen is really suspected of spying for the Soviet Union and Russia for years and being responsible for the deaths of agents working for the United States.
'Breach' is a good drama about the greatest U.S. security breach in history. Chris Cooper is good as the spy Robert Hanssen, and Ryan Phillipe is also good as FBI operative Eric O'Neill, who helps bring Hanssen down. Good dialogue and good dramatic moments help to fuel the film. The climactic moment at and near a park in Washington, D.C. is very good as well.