From the back cover:
FIGHT FOR A WORLD THAT HATES AND FEARS YOU
Still reeling from the events of M-Day and a worldwide depowering of mutants, the X-Men stand as a neutral party in the ongoing conflict surrounding the Superhuman Registration Act. But when revolt against government control strikes at the heart of their tightly knit community, Marvel’s mutant heroes are forced to choose a side or face extinction.
STEP UP THE ACTION
MARVEL HEROIC ROLEPLAYING Event Supplements add new options, characters, and story content to the core MARVEL HEROIC ROLEPLAYING Event Books. Expand your heroic roster, uncover new adventures, and unleash deadly new threats!
This Event Supplement includes:
X-Men: Spinning out of the Civil War storyline, this supplement focuses on the mutant heroes and villains caught up in the superhuman conflict. Take a look inside the mutant refugee camp at the Xavier Institute, the Sentinels of the Office of National Emergency, and the members of X-Factor Investigations. Behold the children of the atom!
Hero Datafiles: Game play sheets for many of the Marvel Universe’s mutant super heroes, from the old and new X-Men to X-Factor Investigations!
For two to eight players, ages 13 and up. Requires game dice and MARVEL HEROIC ROLEPLAYING OPERATIONS MANUAL (included in BASIC GAME or Premium Event Books).