From the liner notes

To Chicago undercover policemen Shatter and Jackson, everything from petty theft to murder one is as common as ham and eggs. But nothing could prepare them for a force spawned by hell itself.

A murder investigation whisks Shatter and sidekick Johnson (Calvin Levels) to the Holy Land's windswept reaches. There they discover it's more than a murder case that hangs in the balance: it's the fate of the world. Human meddling has restored a powerful satanic messenger to life. Now all that stands in the way of the creature's plan for dominance is a mysterious blood rite - and two never-say-die cops.