Has deputy head Mr Drew finally met his match in clever but complicated student Mollie? As Mollie finds herself on report to him so begins a series of demanding, but often delightful, daily encounters between teacher and pupil. Another regular with Mr Drew is Mollie's equally bright sister Charlotte, who viewers saw bantering with the deputy head earlier in the series. Can the school's teachers coax the two talented girls to finally apply their energy to their academic work? For all the pouting and tantrums it soon becomes clear that Mollie is actually very fond of 'Drewy' and that student and teacher have more in common than they might have once thought. But will she listen enough to achieve the grade As she is capable of?