Plot September 11, 2001. Four planes are hijacked by extremist Muslim terrorists. As the world watches, two are flown into the World Trade Center, one into the Pentagon. But final plane United 93 never reaches its target, crashing in a field in Pennsylvania. This is a reconstruction of those events, and an account of how the passengers took the decision to fight back.Verdict Impossible to recommend as a great Friday night out, yet agonisingly vital as thought-urging cinema.