The friendship of a brother and sister in California, united by their love of surfing, but divided by their parents' crumbling marriage. Medina sides with the father, a doctor, Jim with the ex-model mother.
Fourteen-year-old Medina Mason, unpopular and unhappy, finds escape and solace in surfing, but she cannot seem to save her twin brother Jim, caught in the middle of her parents' hostile divorce, from seeking his own escape in drugs and madness.