Secrets of the London Underground (2021)

Episode Overview

Tim and Siddy venture beneath Paddington station, where five tube lines converge, with the oldest line dating back 150 years. Tim investigates an active tunnel beneath the mainline, revealing fascinating hints of its historical use. Meanwhile, Siddy stumbles upon old police cells beneath the platforms and discovers remnants of the luggage carousels that once allowed Heathrow Express passengers to check in their bags at the station. At Tottenham Court Road, Siddy discusses the significant renovations for the Elizabeth line and shares how the station’s famous mosaic artwork was preserved during the upgrades. She also leads us through a locked door to reveal a floodgate that was part of Britain’s Cold War defenses. Back at the Acton Museum depot, Tim meets a young tube driver who has gained a large social media following for her behind-the-scenes insights into her job.