This film shows how the critically acclaimed television series Spotlight on the Troubles: A Secret History was made. Reporters, producers – even the bosses – were filmed over two years as they uncovered incredible new stories about the past. How did Jennifer O'Leary persuade a former missionary priest to reveal his role in smuggling money and weapons to the IRA? How did Darragh Macintyre find out the British and American intelligence connections to a long-hidden documentary about a senior IRA man? And how did Mandy McAuley discover that a church charity worker was actually a suspect in a series of murders across Mid Ulster?