In the Gutter, there are only two ways for a girl to earn a living—among the trash or on her back. When Hart decides that’s not good enough for her, she takes on the high stakes world of no-holds-barred fighting. There's just one problem: women aren’t allowed in the ring. Hair cut short and dressed in her father’s old clothes, Hart ventures into the Alley and the world of arena fighting. There she meets Ruby, the daughter of the Arena owner and a brilliant fighter in her own right. When she offers Hart the chance for friendship, Hart cannot resist. But Ruby thinks Hart is a man, and as she and Ruby grow closer, it gets harder and harder to maintain the façade …