Parigi, 25 luglio 2000. Un Concorde si schianta subito dopo il decollo. L'impressione è enorme in tutto il mondo. E segna la fine del primo aereo di linea supersonico.

24 marzo 1999: un camion nel Traforo del Monte Bianco prende fuoco. E in un istante il tunnel si trasforma in un inferno di fiamme, mietendo decine di vittime.

19 aprile 1995: è mattina a Oklahoma City quando Timothy McVeigh parcheggia un camion di fronte a un edificio statale. Un minuto dopo il camion esplode, uccidendo 158 persone.

Nella notte fra il 5 e il 7 aprile 1990, sul ferry boat Scandinavian Star, in servizio tra la Norvegia e la Danimarca, scoppia un incendio. Le vittime sono 150. Fu un incidente?

L'Inter City Express era ritenuto il treno ad alta velocità più sicuro delle ferrovie tedesche. Ma nel 1998 deragliò, uccidendo oltre 100 persone. Cosa non funzionò?

Nel 1993 in Alabama una chiatta urta un ponte ferroviario. Pochi minuti dopo sopraggiunge un treno. I vagoni deragliano, esplodono. I morti sono 47. Cosa non funzionò?

We make mistakes every few seconds of our lives. They are unavoidable. But sometimes the results can be disastrous. On April 26, 1986, a series of catastrophic blunders leave dozens dead when the Chernobyl Nuclear Power Plant melts down.

April 1992, Guadalajara, Mexico. On the 19th, residents start complaining of a strong gasoline-like smell coming from the sewers. Three days later, on the 22nd, numerous gas explosions in the sewers over a time span of four hours destroy kilometers of housing estate and killing 206 people. But who, if anyone, is to blame? What caused the inferno in Guadalajara?

November 11, 2000, started out as a normal day at the Kaprun ski resort in Austria, as a Furnicular train climbing the slopes breaks down in a tunnel. Passengers then realise it's on fire. Only 12 make it out alive, leaving 155 people to die horribly. But how could such a modern train break down and catch fire?

July 6, 1988. The Piper Alpha stands over 110 miles off Scotland. But on this fateful day, a gas leak causes a catastrophic fire with a loss of 167 workers. Why did the Piper Alpha explode without warning? Was Human Error to blame? What about Mechanical Failure? Or even sabotage?

On July 1985, Italy's Stava Dam collapses and demolishes 70 structures killing 268 people in the process. Was there a fault in the design of the dam? Is this something that could happen to any dam around the world? Find out how a structural failure leads to a massive catastrophe with Flood at Stava Dam

Two Jumbo Jets, Pan Am 1736 and KLM 4805 collide on the lone runway at Tenerife, Spain. The two aircraft are then burnt out and 583 people lose their lives. But how come two experienced pilots made a mistake of this magnitude? How come two passenger jets collided on the runway?

September 11, 2001 is one of the worst days in history. In Washington, D.C, the workers at the Pentagon have only just heard of the chaos going on at the New York World Trade Centre, but are unaware that they themselves have become a target. American Airlines Flight 77, a Boeing 757 aircraft, collides with the Pentagon killing 189. Pentagon 9/11 recreates the events leading up to the explosion at the Pentagon.