1. Episode 1

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. 22 May 2017. 60 min

Linda and her team must battle fault lines that threaten the site with flooding, race to build access tunnels to alleviate pressure on a congested construction site, and piece together a giant geometric jigsaw that will form a station entrance.

2. Episode 2

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. 29 May 2017. 60 min

Engineers must construct and fit out a new station at Paddington, erect a 130m long great glass canopy to soar above the structure, and plug directly into Brunel's original station.