A new threat – the Caliphate – has arisen in the Middle East, and the Pentagon is stymied – how to thwart these fanatics without sending American troops into yet another costly, unpopular war?

One high-level official thinks he has found the ultimate counter-weapon: demons. Ted Burnett, head of the CIA's most secret division, has put in motion a plan to summon the denizens of Hell into our world, control them, and send them against America's enemies.

The plan is insane. Ted Burnett is insane. But no one with the power to stop him is even aware that the plot exists – except for occult investigator Quincey Morris and his partner, white witch Libby Chastain.

No humans can hope to control an army of demons – for long. If Burnett summons the Damned into this world, they will not depart until all of humanity has been laid waste. He has to be stopped. But with CIA-trained killers at his disposal, Ted Burnett is prepared to eliminate anyone who would interfere with his plan. It will take all the resourcefulness and power Morris and Chastain and their friends can muster to stop him...