Sam Bagnall

The story of some of the people on the Polcevera Bridge on the day of its collapse, investigating what caused the bridge to fail so catastrophically.

The story of the freed female hostages of Boko Haram, detailing their lives in captivity and since their release.

Simon Reeve visits Colombia in the year of the pacification, at least on paper, between the government, 'aided' by right-wing death squads, and the Marxist FARC guerrilla, which was turning into an armed super-drug cartel and champion of ransom kidnappings. He speaks with people about the horror that hopefully nears its end and the prospects if both sides disarm.

Laura Kuenssberg tells the inside story of how David Cameron's referendum plan backfired, and Vote Leave won. How will this political revolution reshape Britain's politics?

Following the crisis in Ukraine and Russia's involvement in Syria, the world is closer to superpower confrontation than at any time since the end of the Cold War. Now, a war room of senior former British military and diplomatic figures comes together to war-game a hypothetical 'hot war' in eastern Europe, including the unthinkable - nuclear confrontation.

In November 2015, when gunmen attacked Paris, France declared war on the Islamic State. But that war - and France's 'year of terror' - began a year ago with the attack on satirical magazine Charlie Hebdo. With unprecedented access to the French authorities and previously unseen footage, five-time Bafta-winning director Dan Reed reveals the untold story of the massacre and of the first Islamic State strike in Paris at a kosher grocery store. Key witnesses, police officers and survivors - many speaking for the first time - piece together the dramatic attacks and the unprecedented manhunt that gripped the world for three extraordinary and terrifying days.

In a unique experiment, five teachers from China take over the education of fifty teenagers in a Hampshire school to see whether the high-ranking Chinese education system can teach us a lesson.

A documentary detailing an indiscriminate terrorist attack that left 71 dead in Kenya.