The third season of the serial crime-thriller television series Millennium commenced airing in the United States on October 2, 1998, and concluded on May 21, 1999 after airing twenty-two episodes. It tells the story of retired FBI Agent Frank Black (Lance Henriksen). Black had previously worked for a private investigative organization, the Millennium Group, but left after the Group unleashed a virus that resulted in the death of Black's wife. Now working for the Federal Bureau of Investigation with agent Emma Hollis (Klea Scott), Black seeks to discredit and expose the Group for their sinister motives.