Synopsis

John Humphrys challenges some of Britain's brightest celebrities with a series of questions. Actor Vincent Franklin, athlete Christian Malcolm, BBC Radio 5 Live presenter Chris Warburton, and comedian Graham Fellows – better known as John Shuttleworth – face the Mastermind chair, tested on topics ranging from Disney-Pixar animation to Olympic sprinting, the comedic duo Reeves and Mortimer, and the ill-fated voyage of Donald Crowhurst.