A quiz show that sees three teams of two go head-to-head over a series of quick-fire general knowledge questions that will lead the teams to unlock a riddle set by the show's very own Riddlemaster - Henry Lewis, one of the stars of `The Play that Goes Wrong'. The more questions and riddles they get correct, the more money they'll bank. One pair will make it through to the finale and face Henry's Riddle Run. Here, one brave team will go up against the clock to solve a series of unique fast-paced riddles, and they'll have an important decision to make with a chance to gamble their money on a double-or-nothing final riddle.