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, New Mexico 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.[1] The show is filmed on location in Albuquerque, New Mexico. On July 28, 2010, In Plain Sight was renewed for its fourth and fifth seasons, to run in 2011 and 2012.[2] The fourth season of In Plain Sight premiered on Sunday, May 1, 2011 at 10/9c, where it aired for its first two seasons