On September 11th, 2001 thirty-three passengers would board United 93, along with four terrorist. Their flight would be significantly delayed as we mentioned in last week's episode, which would afford them something the other hijacked aircraft that day didn't have -- time and information to plan a counter attack.

The passengers and crew of United 93 have gone on to be recognized as heroes of the day, as in the face of impossibility, they did the impossible ;saving the lives of many as United 93 was the only plane to not make their target that day.

This week we look into the details of what we learned from the passengers on board about their counter attack from the 37 phone calls they made in the half hour from when the hijacking commenced to when the plane crash. We also touch on the transcript of the black box found in the wreckage ...