After dying in a terrible car accident, Rhett awakens in the afterlife and is recruited to join the crew of the Harbinger, a colossal seafaring vessel tasked with ferrying the souls of the dead. To where exactly, no one knows. But the crew must get the souls there, and along the way protect them from vicious soul-eating monsters that will stop at nothing to take the ship and all of its occupants.
Rhett and his new friends have a hard enough time fighting back the monsters that grow bolder and more ferocious every day. But then a new threat emerges, a demon who wants something that Rhett has. And if she gets it, it could mean the end of everything… for both the living and the dead.