The Limit — Season 1, Episode 3: Trickiest Tunnel
Documentary • 30 min • 1 season, 6 episodes
Episode synopsis
Hugh Doherty has spent a lifetime tunnelling underground, from the Clyde River Tunnel to the Hong Kong Mass Transit System. But now he is facing his biggest challenge yet - to build a new tube line under the heart of London, in record time.
About The Limit
Robbie Coltrane examines bold attempts to push the limits of design.