Brooklyn. Since Gravity "Doomsday" Delgado started working with Coach Thomas, she been breaking records, breaking her competitors, and breaking the walls inside her. Boxiing is taking her places. She makes friends with other boxers: flirtatious Lefty, hard-to-beat D-Minus, artistic Kimani "Monster" Browne, and a host of others. But things with her mother are reaching a tipping point, and Gravity has to look out for her little brother Ty. With a shot at the Olympics on the line, she will have to decide what is worth fighting for.