In this one off special from the acclaimed BBC series, Super Tunnel, go behind-the-scenes of the construction of London's new underground railway: The Elizabeth Line.

Named in honour of the late Queen Elizabeth, this one off documentary provides exclusive access to this mega engineering feat, following a team of more than ten thousand engineers and construction workers

Costing over $25 billion and taking ten years to build, it’s the biggest engineering project in Europe. This is the definitive story of how this engineering feat was achieved.

Part of the series: Super Tunnel