On September 11, 2001, Jules and Gédéin Naudet are making a documentary about a New York firefighter found themselves instead documenting the attacks in Lower Manhattan. Right after the first plane crashed, Jules Naudet followed FDNY rescue crews into the burning North Tower of the World Trade Center. His brother Gédéon Naudet filmed back at the firehouse before making his way to Ground Zero. The video they captured would later become a documentary: "9/11".