Passenger 69

On Aug. 21, 2015, the world watches in stunned silence as the media reports a thwarted terrorist attack on a train that's bound for Paris - an attempt prevented by three young Americans traveling together through Europe. The heroic and courageous actions of Anthony Sadler, Alek Skarlatos and Spencer Stone help to save the lives of more than 500 passengers on board.

In honour of the 15th Anniversary of 9/11, National Geographic Channel is looking back at the very best reporting we have done since this world-changing tragedy first happened using extended excerpts from past specials that relate directly to events leading up to and following the attacks on New York City and Washington DC.

An amnesiac man is found running blood stained and half naked through the Brecon Beacons. Hunted by the police and military, is he a homicidal terrorist or innocent pawn?

This historical melodrama (later remade by Henry Roussel himself in 1932 and Richard Pottier in 1952) set during the reign of Napoleon III of France. Here, Raquel Meller plays a Spanish flower girl who saves the life of the French empress Eugenie de Montijo (played by Suzanne Blanchetti), by taking her place in her carriage. When the carriage is overthrown by the anarchist's bomb, the girl survives because of the masses of violets in the imperial carriage, the empress' favorite flowers.

Waging war against all things glamorous and beautiful, crippled terrorists Acción Mutante plot a series of attacks on society's elite, and attempt the kidnapping of a wealthy socialite at her elaborate wedding reception.

Flying at 40,000 feet in a state-of-the art aircraft that she helped design, Kyle Pratt's 6-year-old daughter Julia vanishes without a trace. Or did she? No one on the plane believes Julia was ever onboard. And now Kyle, desperate and alone, can only count on her own wits to unravel the mystery and save her daughter.

British Ministry agent John Steed, under direction from "Mother", investigates a diabolical plot by arch-villain Sir August de Wynter to rule the world with his weather control machine. Steed investigates the beautiful Doctor Mrs. Emma Peel, the only suspect, but simultaneously falls for her and joins forces with her to combat Sir August.

Though she can spin wild tales of passionate romance, novelist Joan Wilder has no life of her own. Then one day adventure comes her way in the form of a mysterious package. It turns out that the parcel is the ransom she'll need to free her abducted sister, so Joan flies to South America to hand it over. But she gets on the wrong bus and winds up hopelessly stranded in the jungle.

A year after losing his friend in a tragic 4,000-foot fall, former ranger Gabe Walker and his partner, Hal, are called to return to the same peak to rescue a group of stranded climbers, only to learn the climbers are actually thieving hijackers who are looking for boxes full of money.

A CIA agent is interned for failing to kill an international terrorist. Escaping from his island exile, he teams up with a flamboyant arms dealer and sets out to find the terrorist and rescue the agent's family. Together they're a two-man arsenal... with enough voltage to rock the free world.

The story of the famous and influential 1960s rock band and its lead singer and composer, Jim Morrison.