In 2007, the government of New South Wales launched a much publicized scheme to convert rainwater from a flooded railway station, below St James Station in Sydney, into irrigation for the city's botanical gardens.
Then the project was scrapped without rationale.
Natasha is a current affairs television journalist, who seriously needs a big story to save her career. She smells one here, particularly when a YouTube search reveals the possible disappearance of a graffiti artist in the tunnels.
She leads her camera crew and a fellow journalist into Sydney's subterranean subway, far beyond the reach of cell 'phone signals and easy escape.
This proves to be an error. There is a reason that the homeless panic at the thought of going down there, despite all of the abandoned World War Two amenities. There was a rationale behind the New South Wales premier quietly dropping his much vaunted idea; but it wasn't one that he was willing to broadcast to the electorate.
Natasha's film crew are about to stumble first hand into what that story really entails. Fortunately for them, they've brought an array of technological gadgets to record what they believe is going on.
Afterwards, clipped together with security CCTV camera footage and taped telephone calls, it will help reconstruct the reality.