Every intelligence agency's job is to undertake politically sensitive, dirty and often dangerous assignments. Spymaster Neil Burnside (Roy Marsden) shrewdly leads the Special Operations Unit of the British SIS (aka the Sandbaggers) with decisive ruthlessness. Called "The best spy series in television history" by The New York Times, this highly-acclaimed program dramatically sweeps viewers along Westminster's corridors of power and out into the world of espionage.