According to a BBC press release, Baker was working on a documentary about the East London Mosque in 2015 when the news broke that three local school girls had disappeared from their homes and were on their way to join IS.

Baker, who was filming at the mosque at the time, tried to help the families bring their daughters home. As we now know, Begum would be the only girl to survive the so-called caliphate. Returning to the story seven years later, the new film sees Baker travel from Bethnal Green in east London to Syria as he challenges Begum to try to figure out if the story she tells is true.

“This is one of the most talked about, yet least understood, stories of our time,” said Baker in a statement.

“For more than a year, I have been building on the work I started in 2015, examining Begum’s account of what happened and retracing her steps. Now it’s time to tell the story across multimedia, building on the success of our previous series.”

As debate continues to swirl around Begum’s fate, there is no escaping the reality that more than 60,000 ISIS brides and children, who were radicalised and groomed by a male-led extremist organisation, are now stranded in Syria with no country to go back to. Begum, who recently spoke of her fears that she will be executed after being told that she will face trial in Rojava in Syria for terror offences, is but one of them.

A landmark new BBC documentary will explore the definitive story of Shamima Begum