Professor X hasn't been himself lately - moody, inscrutable - but the psionic armor and army of Sentinels are the real tip-offs! It'll take every super hero New York has to face the onslaught. Collects X-Men (1991) #55, Uncanny X-Men #336, Cable (1993) #35, X-Force #58, X-Man #19, Incredible Hulk #445, Iron Man #332, Avengers #402, Thor #502, Wolverine #105.