The programme celebrates the great British breakfast with a look back at some of the UK's favourite brekkie-based investigations, including when Jimmy Doherty traced the roots of baked beans back to the early settlers in America, and solved the puzzle of what kippers actually are. There is also a look at when Matt Tebbutt delved into the surprising science behind why nuts always rise to the top of his muesli, as he discovered how the same principle can save a skier's life in an avalanche.