In Plain Sight is an American dramatic television series on USA Network. The series revolves around Mary Shannon (Mary McCormack), a Deputy United States Marshal attached to the Albuquerque, NM, office of the Federal Witness Security Program (WITSEC), more commonly known as the Federal Witness Protection Program. Shannon must find ways to balance her professional life of protecting witnesses, her professional relationship with her partner, Marshall Mann, and her problematic personal life. The show was filmed on location in Albuquerque, New Mexico. On May 4, 2012, In Plain Sight concluded its fifth and final season.