The X-Men (re-united with Storm) take to the tunnels to discover why the Morlocks have been erupting with violence. It ain't going to be pretty. Also, Professor X goes off in search of a VERY IMPORTANT character from X-History. Do not miss this tale brought to you by the white-hot team of ED BRUBAKER (CAPTAIN AMERICA, DAREDEVIL) and SALVADOR LARROCCA (NEWUNIVERSAL, X-MEN).