Seventh-grader Joanna Giordano wants to play ice hockey, but the only game in town is the boys' middle school team. Everyone tries to talk her out of playing—from the principal and the coach to the class bully, and even her best friend, Ben. But Jo is as determined as she is talented, and even a grandfather with Alzheimer's and a father who needs anger-management classes can't stop her from getting in the game.