Bo is a troubled twelve-year-old girl. Torn between her parents who are in the middle of a divorce and seem unable to understand each other, she harbors a deep anger that she can’t control. Despite her efforts, her body doesn’t follow her. She needs to fight to try to overcome her problems. When she finds a gym where they practice martial arts, Bo learns how to find her balance and where to convey her energies. By rigorously practicing a sport, she manages to create new strong and constructive relationships.