When James Le Mesurier fell to his death in Turkey in 2019 he left behind a tangle of truths and lies. Mayday tells the extraordinary real story of the man who organised the White Helmets – rescuers who film themselves pulling survivors from bombed out buildings in rebel-held areas of Syria – and investigates claims that, far from being heroes, they are part of a very elaborate hoax. James Le Mesurier – his detractors say – was a British secret agent, pulling the strings. So when his body was found by worshippers on their way to morning prayers, there were a lot questions.

Mayday: 1. On the Ledge

One of the world's longest running conspiracies. Who was really behind the Lockerbie bombing?On 21 December 1988, a plane explodes over Lockerbie, Scotland, killing 270 people. A Libyan man, Abdelbaset al-Megrahi, is convicted.
Despite a global investigation Megrahi's conviction, and the failed appeals that followed, are still tainted - for some - with doubt and conspiracy theory. Myles Bonnar wants to find out why.
Now, almost four decades on; fresh evidence and a new trial. The alleged bomb maker Abu Agila Masud is in custody, with a trial expected to begin any day. He denies any involvement in the Lockerbie bombing.Journalist Myles Bonnar (Dead Man Running, Shiny Bob) picks apart the original investigation and finds himself in a world full of militant groups, top secret files and grieving families who will never give up on the pursuit of the truth.Intrigue: 'Jaw-dropping', 'gripping', 'bingeable,' 'thrilling' - dramatic true stories and investigations that reveal how the world really works.