Richard Osman hosts the final stage of the week-long contest, once again serving as quizmaster as five of Britain's brightest young minds battle it out to enter the final round, and secure the title of Child Genius 2017. Yes, these kids are way smarter than all of us, try not to feel too bad about it. Although some of them have pretty pushy parents that we aren't quite sure we like. First off tonight, the contestants will demonstrate their mastery of a degree-level specialist subject of their choice. The subjects are Edward Jenner: Medical Innovation and Methodology in the late 18th Century, Pre-Socratic Philosophy, Military Campaigns of the Yellow Turban Rebellion - 184-205CE, Martin Luther King Jr, and London in 1666: Society, Politics and the Urban Environment in the Year of the Great Fire. Pfft, EASY, amirite?