From Publishers website: The first major Marvel Heroic Roleplaying Event covers the polarizing storyline of the award-winning Civil War crossover, from the tragedy of Stamford, CT to the final confrontation between Iron Man's pro-registration forces and Captain America's anti-registration rebels. The Event Book details the major decision points during the war and its aftermath, while the Event Supplements add more options, characters, and story-lines to expand the Civil War experience. The Premium Edition of the Civil War Event Book includes all the datafiles, sourcebook material, and scenes you need to play.