Judge Dredd: Helter Skelter — Garth Ennis

In Helter Skelter, the very structure of reality is altered in Mega-City One. Dredd finds himself on the run, pursued by ghosts and demons from his own past. Walls between alternate dimensions are collapsing, unleashing other-Earth counterparts of Dredd's vilest villains. And in charge, the one man to comprehensively bring Mega-City One to its knees on a previous occasion, Chief Judge Cal.

Dredd's only hope of saving the city lies in the reluctant figure of warp specialist Darien Kenzie. All he's got to do is keep her alive. And himself, of course...