2014 | 3 Episodes

Season 1 of The Fifteen Billion Pound Railway premiered on July 16, 2014.

2017 | 2 Episodes

Season 2 of The Fifteen Billion Pound Railway premiered on May 22, 2017.

Ten thousand engineers and construction workers race to complete Crossrail.

2019 | 2 Episodes

Season 3 of The Fifteen Billion Pound Railway premiered on February 13, 2019.

Third series of the documentary charting the inside story of Crossrail.

2022 | 2 Episodes

Season 4 of The Fifteen Billion Pound Railway premiered on June 12, 2022.

This final series charts the inside story of how the fifteen-billion pound railway became the nineteen-billion pound Elizabeth line.