The film won the 2007 British Academy Television Craft Award for Sound Factual, and was nominated (but did not win) for Editing as well.
Frank De Martini was the construction manager of the World Trade Center, known for helping rebuild the building after the 1993 bomb attack.
He told Nicole to escape and he and two other co-workers, Pablo Ortiz and Mak Hanna, began going up the North Tower to rescue trapped workers.
They eventually came to the 89th floor where they rescued several trapped workers including Rick Bryan, a manager at MetLife, and secretary Dianne DeFontes.
De Martini sends Hanna down the tower with an injured, elderly Port Authority worker on his back while Bryan and his co-workers begin to make their way downwards.
Making their way towards the impact zone, De Martini and Ortiz report structural damage that could lead to catastrophic results.
On the morning of the attacks, Christine Olender is in charge of a conference at Windows on the World, a restaurant on the 106th and 107th floors of the North Tower.
She sends Melanie de Vere and two other delegates who are attending the conference up to the roof to try and evacuate from there, but the doors are locked and Port Authority employees in a command center on the 22nd floor of the building are unable to remotely unlock them due to damaged systems.
Once they reach the Sky Lobby, Zhu and Ramos learn from passing firemen that the Pentagon got hit and that the day's events are all part of a terrorist attack.
Jay Jonas, Captain of Ladder 6 from the FDNY Dragon Fighters out of Chinatown, is one of six New York firemen who went into the North Tower to save trapped workers.
After the South Tower was hit, Jonas and his group (which included Salvatore D'Agostino, Matt Komorowski, Bill Butler, Mike Meldrum, and Tommy Falco) were given clearance to start ascending the stairs to reach trapped workers.
Al Smith, Jan Demczur, John Paczkowski, Colin Richardson, Shivam Iyer, and George Phoenix were trapped in an express elevator in the North Tower.
Before his building was hit, he attempted to evacuate with several other employees fearing for their safety, but was instructed by security guards in the lobby to return to his office.
In the impact zone, Praimnath miraculously survived the explosion and crawled along the burning floor, but was stopped by an upright sheetrock wall.