How can X-Factor be the defenders of Mutant Town when their little piece of the world is hemorrhaging its population? Combine that with Rahne already being gone and Rictor having one foot out the door, and Madrox's team finds itself at its lowest point. Unfortunately, since they're the last mutant team standing and the only game in town, that puts them squarely in the crosshairs of one of the X-Men's oldest and deadliest foes. [per solicitation]