Air date: 2011-09-05

Runtime: 45 min

On September 11, 2001 two aircraft are deliberately flown into two buildings of the World Trade Center and one is flown into the Pentagon. Another crashes in a field in rural Pennsylvania.

Air date: 2011-09-12

Runtime: 45 min

On December 7, 1941 Japanese forces attack United States military installations in and around Pearl Harbor, thus bringing the US into World War II.

Air date: 2011-09-19

Runtime: 45 min

On October 5, 1999 two trains collide at Ladbroke Grove junction near London's Paddington station after the driver of one fails to stop his train at a red signal.

Air date: 2011-09-26

Runtime: 45 min

On July 1, 2002 a cargo airliner and a passenger airliner collide while they are over Überlingen in Germany. The two aircraft crash, killing all on board.

Air date: 2011-10-03

Runtime: 45 min

The Cavalese cable car disaster of 1998 (as distinct from a cable car disaster in the same location in 1976), occurred on 3 February 1998 near the Italian town of Cavalese, a ski resort located in the Dolomites, some 40 km north-east of Trento. The disaster, which led to the death of 20 people, occurred when a U.S. military plane cut a cable supporting a gondola of an aerial tramway.

Air date: 2011-10-10

Runtime: 45 min

On December 2, 1984 in Bhopal, India, a toxic gas leak at a Union Carbide chemical plant results in the deaths of 3,000 people.