Ultimatum tie-in! The unthinkable has happened as the X-Men find themselves reeling from the devastating events of Ultimatum. As Xavier’s pupils prepare to retaliate, one X-Man is conspicuously left off the roster. As her time as part of Weapon X is counted against her, how can Rogue prove her loyalty? How far will she go? And just what is her mysterious connection to Vindicator of Alpha Flight?! His identity finally revealed!!!