Sixteen-year-old Robin Ellis (aka Robin CookieJars) wants to be the best jammer on her roller-derby team and maybe one day play for the Creek City Roller Derby All-Stars like her idol, Annie Mossity. But star junior player April Reid (aka April Powers) always seems to be one lap ahead. Until recently, that is. Robin has noticed that April has been losing a lot of weight, and her game is suffering. This may be Robin's chance to finally grab the MVP title. But her success may come at a very heavy cost.