In the third programme, Peter Taylor explains the events of Christmas Eve 1994.
An Air France plane is hijacked in Algiers by a group of Islamist extremists.
But this was no ordinary hijack. In a chilling precursor to 9/11, the plan was to divert the plane and use it as a missile, a weapon of mass destruction landing in the heart of Paris.
Featuring dramatic archive, as well as interviews with hostages, official negotiators and some of the French commandos who stormed the plane, the programme tells the story of the extraordinary rescue mission that brought the crisis to an end.
The Paris Plot marks the emergence of an Islamist jihad, a Holy War which has since spread in all directions across the world.
Presenter: Peter Taylor
Series Producer: Chris Granlund
Series Director: Steve Condie
Producer: Patricia de Mesquita
Executive Producer: Dominic Crossley-Holland