Mason "Mace" Perry was a firebrand cop in the D.C. Police force until she was kidnapped and framed for a crime - and then spent two years in prison. Now she's back on the outside and focused on one mission: to be a cop once more. Her only shot to be true blue again is to solve a major case on her own. But even with her police chief sister on her side, she'll have to work in the shadows: A vindictive U.S. Attorney will do anything to send Mace back to jail. Enter Roy Kingman...