Waterloo will now have its own semi-pro men's hockey team, thus expelling the amateur women's leagues from the arena. To avenge their lost ice time, an impulsive hockey player and a ruthless octogenarian—a former derby champion—have a plan: recruit the city's disenfranchised and form an underground roller derby team. With the help of the Women's Club, they will prove that women's sports can also inspire crowds and that sisterhood is the ultimate act of resistance.