One minute eighth-grader Shaena is rushing to grab a rebound, and the next she's lying on the basketball court, dizzy with a horrible pain in her head. A collision with an opponent has left Shaena benched with a concussion, two weeks before the big rival game. And she's angry, why does she need to stop playing just because of a headache? Forced to take things slow, she watches as the other girls practice and improve without her, and Shaena starts...