Former Royal Marine Arthur Williams discovers the people and places that changed the course of the Second World War. He begins in Liverpool, Britain's most important wartime port, which landed vital food and armaments from the Atlantic convoys.

Arthur Williams explores London, starting out at St Paul's Cathedral, which became the iconic symbol of the blitz. At Soho's Cafe de Paris, he learns how the blackout affected the capital's nightlife, and visits London Zoo, to find out how the animals coped during the bombing.