One for the diaries.

A new documentary series behind the scenes of Sydney Metro will soon be broadcast across Australia.

You can follow the teams building the new train tunnels deep under Sydney Harbour, go inside the Central Station metro works and join the journey of delivering and opening the Metro North West Line.

Tune in to the world premiere of Sydney’s Super Tunnel from 8.30pm on Wednesday 12 August on SBS-TV.

Watch the official trailer HERE

This independently-made, four-episode series will be broadcast weekly. It will also be shown across the world, to be known as Mega Metro, taking Sydney’s engineering and construction achievements to a global audience.