Ultimate Nightmare is a five-issue comic book limited series. Issues 1, 2, 4 and 5 were penciled by Trevor Hairsine and inked by Simon Coleby. The third issue was drawn by Steve Epting. Ellis notes that ""Ultimate Nightmare" was originally intended as a set-up for a big Ultimate-line event that Mark Millar was going to do. Mark, however, has had health issues for some time, and that and his workload led to him bowing out and me once again being asked to step in and help out. And then, while I was getting into "Nightmare", Joe Quesada had the idea of turning this event into a trilogy...So I needed to come up with a credible second step in the trilogy fairly quickly."