Mega Metro
A tight-knit international team battles to complete Australia's biggest ever tunnelling project in Sydney - building a fully-automated metro system beneath, through and above the city.
We meet the team building the world's most advanced driverless metro in Sydney.
The team faces a tough challenge - boring beneath Sydney's 230-year-old CBD.
Crews race to install tracks, cabling, ventilation, safety systems and 900,000 plants.
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