Maverick police detective Creegan is the newest member of Londons Organized and Serial Crime Unit (OSC), an elite, rapid-response crime squad. The OSC uses their diverse crime-fighting skills to bring justice to society. Along with his stalwart partner D.I. Susan Taylor (Nicola Walker, Four Weddings and a Funeral), Creegan squares off against some of Englands most dangerous criminals a serial murderer of children, a killer intent on murdering hospital patients, and a cyber-criminal who lures young Web-surfers with a gothic fantasy game and manipulates them into committing violent crimes.