To save America from those who would steal it, the Spooks will have to battle an evil from the dawn of civilisation. Important personalities have been dying or going crazy. Investigator Morton Chapel and his men discover that they are on the trail of an ancient evil, something dating back to ancient Babylon and brought back to life by a British occultist. As the dark magician leaves a trail of corruption throughout the country's ruling elite, the Spooks realise that the threat is directed at the highest level of government and only they can stop it.