"Crossedfollows a group of individuals, uninfected in a world infected by the Crossed plague. Against a nation turned into immoral, unfeeling sick bastards, who will rape, kill and eat anyone they come across – although rarely in that order. It is the harshest drama and the darkest comedy that Garth Ennis has attempted, it needs a strong stomach to pick up, let alone read. And it has zombies waving around horse penises because it’s funny." via
one of the most epic comics I've ever read, I highly recommend it. These are just the covers from each issue to give you an idea.