Landon Hamilton, the champion of humankind in the war between good and evil, had thought he'd seen the last of the demon Abaddon when he destroyed the Box.

He was wrong.

Abaddon is back, summoned to our world under the control of an old acquaintance and desperate for the freedom Landon promised him. 

Now the race is on for Landon and his motley team of angels, demons, and mortals to find a way to destroy the demon and put a stop to his handler's plot before humankind is laid to waste.

He's outmatched and out of time. But then again, isn't he always?