Kristin was a professional roller brawl fighter. It was a brutal sport in which half-naked women fought each other in different event while on roller skates. She returned to the arena after a maternity break, hoping to restart her career. However, after her first event back, news of a nuclear war quickly spread. She rushed home to fetch her infant daughter. There was only one place where they could be safe, the Dome.

Politicians soon took control over the only structure safe from nuclear fallout. When they decided to reduce the number of residents to ensure the limited resources would last, some men and women had to fight in contests to the death to earn their way back into the Dome. However, this would not be the last time residents of the Dome had to fight in deathmatches.