The Lockerbie Bombing

The eve of 9/11 is recalled. Eyewitnesses recall the day before the 9/11 terror attacks and the collapse of the Twin Towers.

The De Havilland Comet was the world's first passenger jet airliner. But less than two years into service, two aircraft blew up in mid-air, killing all aboard. PM Winston Churchill ordered an assemblage of experts to discover what went wrong - in the process, inventing many of the air crash investigation techniques still used today.

On January 26, 1950, a US Airforce troop plane left Anchorage for Montana with 44 people on board. The crew of the Douglas C-54 Skymaster #2469 was supposed to check in every half hour along the route. As the aircraft crossed into Yukon, they radioed the tiny outpost of Snag to say that there was ice forming on the wings, but otherwise all was well. After that, the Skymaster disappeared. And to this day no sign of the aircraft or its passengers has ever been found. This fascinating Yukon-shot documentary tells the stories of the victim’s families and an intrepid group of Yukoners striving to give those families closure by searching every summer in hopes that the Skymaster will finally turn up.

For early aviators, conquering the forces of gravity was a daunting challenge. But black aviators had an additional challenge - conquering the forces of racism. Meet the men and women who took to the skies throughout the 20th century, proving to a segregated nation that skin color doesn't determine skill level. From biplanes to commercial jets, and from barnstormers to war fighters, meet the path-breaking pilots who opened the skies for all - and contributed in countless ways to the development of aviation.

An attempt to create a bridge between the different political positions that coexist, sometimes violently, in the Basque Country, in northern Spain.

Spain, 1997. The story of twelve days in July during which Basque society left indifference and fear behind and faced the threat of the terrorist group ETA.

In 1985, Kathleen lost her brother Eddie, an American soldier, at the hands of the Red Army Faction (RAF), a German leftist terrorist organization. Now, decades later, she decides to seek out the group responsible for his murder.

This unprecedented and exclusive insider's account by filmmaker James Hanlon and Gedeon and Jules Naudet of the World TradeCenter attack, which contains the only known footage of the first plane striking the World Trade Center and the only footage from inside Ground Zero during the attacks, will also include footage from events marking the 10th anniversary, as well as new interviews with many of the firefighters who were featured in the original program. They will discuss how their lives, families and the world have changed in the 10 years since the tragedy - some for better, some for worse. Viewers will also hear from New York City Fire Department health officials as they discuss some of the health issues that have plagued firefighters working at Ground Zero.

FRONTLINE and ProPublica go inside Europe’s fight against terrorism — the missed warnings and the lingering vulnerabilities.

German journalist Jürgen Todenhöfer uses this unique opportunity to expose ISIS' apocalyptic vision for the world and to document everyday life in the cities it controls. He finds a population terrified into submission by beheadings, enslavement and torture, and an organisation unwavering in its commitment to its divine mission: to spread fear and violence throughout the world, no matter the cost.