Episode 1 - Urban Heart Surgery

The team face the challenges of Europe's biggest engineering project.

Episode 2 - Tunnels Under The Thames

The challenge of building train tunnels under water.

Episode 3 - Platforms and Plague Pits

The team uncover some gruesome discoveries of London's past

Episode 1 - Urban Heart Surgery

This episode follows a team of more than ten thousand engineers and construction workers as they race to build a brand new railway under London – Crossrail – London’s new Underground. Costing fifteen billion pounds, it’s the biggest engineering project in Europe and a huge challenge to pull off. As they burrow the forty-two kilometers of tunnels, engineers must battle to make sure that listed buildings don’t crack, London Underground trains keep running, roads don’t shut and the City stays in business. Crucially, they must drive one of their gigantic 1000-tonne tunnel boring machines through a tiny gap in the congested underbelly of Tottenham Court Road station without the passengers on the tube platforms below knowing they are there.

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for BBC2