According to the U.S. Office of Juvenile Justice and Delinquency Prevention, roughly 500,000 youth nationwide are incarcerated in juvenile justice systems every year. Prevention and juvenile teaching programs are very important in decreasing juvenile crime. Robin is a substitute teacher in the Juvenile Justice System in Los Angeles, California area. On any given day, he can witness one of his students producing quality work and on anther he'll be breaking up a fight between two students.