The orchestra of Ridley Road, a state school, is to give a concert in Moscow at the European Festival of Youth, playing Tchaikovsky's Fourth Symphony before an audience of cultural bigwigs. But their instruments have been impounded by Customs due to the foolishness of Second Flute. Luckily, Alex, the Russian boy who cleans the hall, is a devout Pinball Wizard fan who comes up with a plan that saves everyone.