The city of New Haven has been transported into the arid wasteland of the demonic realm, and Ray's newfound half-brother is to blame.
As if dealing with demons wasn't enough of an ordeal before, now Ray and his friends have to fight them on their home turf. There's no way to escape the Abyss, so all they can do is try to survive, using the weapons of light God equipped them with.
But being trapped in an action movie is the least of Ray's worries. With his brother now on the run from a massive dragon the demons call Apollyon, and having lost Legion's cooperation and access to his powers, he desperately needs Ray's help.
The problem is, the two brothers are becoming increasingly opposite, and neither of them have much experience in navigating family dynamics.
Demons, they can handle. But brothers? Yeah right.