September 11, 2001 is just another day at the office for John O'Neill, now the World Trade Centre's Chief of Security - until disaster strikes. Then no one can get hold of him. In Yemen, FBI agent Ali Soufan is with other Americans being evacuated when he is summoned back to the US Embassy. The CIA needs his expertise to confirm if the hijacked aircraft attacks are the work of al-Qaeda, so local agent John Chihoyne finally hands over intelligence Soufan has been requesting for months. As White House staff are ordered to vacate, Condoleezza Rice has a surprising response to the al-Qaeda angle

S1 Ep10