Richard Ayoade hosts the game show, inviting the Saturdays and Strictly star Mollie King, gold medal-winning athletes Ellie Simmonds and Nicola Adams, Made in Chelsea's Ollie Locke and Murder In Successville comedian Tom Davis to take his golden hand and tackle a number of physical, skill, mystery and mental challenges. Their aim is to win the elusive crystals - and the more they win, the more time they get in the Crystal Dome, where they will be raising money for Stand Up for Cancer. With appearances from Adam Buxton and Jessica Hynes.