FBI Assistant Director Walter Skinner is the prime suspect in a homicide involving a woman he was with the night of her death. Mulder and Scully are all he has to prove his innocence, as superior officers try to shut him down and the only clue is a mysterious old woman.
A dedicated, strait-laced FBI agent and a street-smart CIA agent are part of a new, clandestine taskforce charged with solving and preventing domestic terrorism in and around New York City.