The Citicorp engineering crisis: Inside the secret race to protect New Yorkers

When it opened in 1977, Citicorp Tower was one of the tallest buildings in New York. But it had a terrible secret: an accidental engineering flaw that meant, with the right gust of wind, it could have been toppled. In response, construction teams worked in secret, through the night, to reinforce the skyscraper and save it from destruction.

With some incredible access and captivating interviews, our latest documentary tells the extraordinary story of how New York City narrowly avoided disaster.