Maze Master Richard Ayoade guides a glittering array of fearless famous faces through a plethora of brand new games in The Crystal Maze. Olympic legend Dame Kelly Holmes takes charge of grime MC Big Narstie, actress Jorgie Porter, internet superstar Alfie Deyes, and gold medallist Greg Rutherford in an action-packed journey to the Crystal Dome. Along the way Big Narstie comes face to face with Jarhead, so how will the master of grime cope with his mighty riddles?