The show was announced, in April 2018, during the finale of the fifteenth series of Ant & Dec's Saturday Night Takeaway.

Stephen Mulhern explores the streets of various UK cities to find people to complete various challenges.

The challenges include filling cars with an exact amount of fuel and guessing the prices of items on a conveyor belt.

Each show ends with the 'In for a Penny, In for a Grand' finale game, which includes people doing silly things in order to win £1,000.

Each contestant takes part in five rounds - four focusing on different challenges, and the final focusing on stopping at a selected number of seconds (i.e. stopping between 9–10 seconds) - and should they complete all five, they win £1,000, but if they fail on one, the game ends and the entire production crew run off to find the next contestant, much to Stephen's frustration.