Presenters Matt Richardson and Ken Cheng surprise hungover Brits across the whole country who think they are taking part in a documentary about British night life with their friends. The next morning, woken by a knock at the door, they discover that Matt and Ken are offering them a chance to win a cash prize - but only if they can haul themselves out of bed and take part in a series of challenges known as `The Hangover Games'. Tasks test their memory of the night before, as well as their stamina, clear thinking and the strength of their stomachs, and friends will have to rely on each other's quick wits if they want to emerge victorious.