Season 1 BBC Two , 2014 Watch now Series following engineers and construction workers as they build London's Crossrail. Season 2 The Final Countdown BBC Two , 2017 Ten thousand engineers and construction workers race to complete Crossrail. Season 3 Under Pressure, Over Budget BBC Two , 2019 Watch now Third series of the documentary charting the inside story of Crossrail. Season 4 Inside the Elizabeth Line BBC Two , 2022 How the fifteen-billion pound railway became the nineteen-billion pound Elizabeth line.
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