The first programme of the series joins Passmores School's deputy head Mr Drew on the front line of school discipline. Dealing with emotional teenagers, enforcing detentions and maintaining the school's high standards - as well as teaching history - is all in a day's work for Mr Drew. Some love him, others love to hate him. It's the last few days of term before Christmas and Mr Drew has more to contend with than a few snowballs in the playground. When a row over school uniform escalates, an accusation from a pupil threatens to derail his entire career.