Ellen's husband was the pilot of flight UA73 that flew into the North tower of the World Trade Center. After September 11, she helped pass legislation to enable pilots to carry weapons in the cockpit. She is still concerned by lack of safety regulations and interested in understanding the changes in the civil aviation world. An investigation led by Jean Quatremer is exploring the various conflicts and exposing the new dangers. This film is her journey to understand whether the security infrastructure imposed on us will keep our skies safe.