Collects Age Of X-Man: Prisoner X #1-5. The Danger Room holds the worst of the worst in the Age of X-Man! When you break the law in paradise, you aren't sent to just any prison. You're sent to the Danger Room — a penitentiary filled with the roughest and meanest mutants who don't fit into X-Man's utopia. They each have a reason for being there, and they're all primed and ready to kill each other. But that's about to change, because the Danger Room's newest prisoner has just arrived: Lucas Bishop! As Bishop navigates the various mutant gangs to find the truth beyond the walls of the prison, can he trust the other inmates — including Magneto's daughter, Polaris? Or will Bishop have to break out on his own? One way or another, these walls are coming down!