Sixteen-year-old Kelli Standley is a lacrosse player. But ever since her mom's new job forced her to move from public school into the elite private academy, where a girls lacrosse team is nonexistent, Kelli is far from thrilled. Kelli meets Gardner who she thinks might make a good friend if he wasen't being constantly pushed around by Sanders Chance.
She decides to join the school's lacrosse team- regardless of gender. There, she is tested and tormented by Sanders and his buddies, unknowing of her true identity. Kelli soon realizes what it takes to play with the best of the best and how extreme things become. But what will she do if the boys find out her secret? What risks is she willing to take? How far will she go?