Season 2

The return of the documentary series focusing on some of Britain's most high-profile crimes. In May 2013, soldier Lee Rigby was attacked and murdered by Islamic extremists Michael Adebolajo and Michael Adebowale close to his barracks in Woolwich, south-east London. In this programme, witnesses to the attack recall the events and international experts on terrorism examine how the killers became radicalised.

In his lifetime, Jimmy Savile was a popular DJ and TV personality who raised £40million for charity and it was only after he died in October 2011 that his dark side was exposed. In October 2012, an investigation into his activities began, prompting hundreds of people to come forward with allegations of sexual abuse dating back to 1955. This programme investigates one of the most notorious scandals in modern British history, and features testimony from alleged victims, as well as recollections of Savile's family members and former colleagues.

In May 2012, six children aged between five and 13 died when their parents Mick and Mairead Philpott set fire to the family home in Derby. The blaze was started as an attempt to frame the former mistress of father-of-17 Mick, and despite tearful appearances in front of the TV cameras, the couple were convicted of manslaughter months later. This documentary features interviews with eyewitnesses and neighbours who tried to save the children.