Though his past has long been a mystery, supernatural bounty hunter John Tower finally reveals the gruesome details of his former life with the only living soul he can trust: his unofficial partner, FBI agent Alicia Hardwicke. Fighting together, they must retrieve three mystical artifacts; only then will Tower be freed from his wretched curse. As Tower ventures deeper into the depths of Hell, Alicia vows to follow him to the bitter end. Meanwhile, Tower's sworn archenemy, Martin Castle, is betrayed by someone in his own Brotherhood. Can Tower escape in time to use his enemy's loss to his advantage?