The Fifteen Billion Pound Railway - Season 1
1 - Urban Heart Surgery
Air Date: July 16, 2014
A look at London's Crossrail, which requires building 42 km of tunnels under the city
2 - Tunnels Under the Thames
Air Date: July 23, 2014
Engineers building Crossrail battle to rebuild a Victorian tunnel under the Royal Docks.
3 - Platforms and Plague Pits
Air Date: July 30, 2014
The engineers building Crossrail race to build ten new train stations across London.