James begins with St Teresa's primary school in Basildon, Essex, testing whether his 'instrument amnesty' can work with the pupils of Year 5, and persuading teachers and parents of its benefits before he attempts to launch it across the rest of the UK. St Teresa's was placed in special measures after its last Ofsted inspection, and its new head is determined to improve its academic performance. James thinks music could be the key to the school's transformation, but can he really get a class of 9 and 10 year olds fully kitted out with clarinets, flutes, trumpets and trombones, and ready to perform Beethoven in just five weeks?