Alex and Matt invite David Suchet into the studio to uncover as much as they can about his last ever episodes as Poirot and saying goodbye to the character after 24 years. Marty Jopson heads to the UK's newest and most high-tech seaport, the London Gateway, and Larry Lamb learns the story and meets the last survivor of the invasion of the Savoy, a protest that lead to hotels and tube stations allowing people to stay overnight during the blitz.