Jackie Kallen is a sassy, brassy boxing manager-in-the-making determined to change "Lethal" Luther Shaw from a mere street punk into a world-class prizefighter. To help Shaw rise to the rank of number-one contender, Jackie coaxes veteran trainer Felix Reynolds out out retirement. Before they can all realize their dream of a championship bout, they must first learn what it takes to stand in each other's corner. Jackie Kallen becomes the first female to ever make a name for herself in this male-dominated sport.