In 2017, a British-born terrorist detonates a suicide bomb at pop superstar Ariana Grande's Manchester concert, killing 22 people and injuring more than 800 others. It was an attack that shocked the nation to its core. Five years on, the truth of what happened that night is finally emerging. Drawing on testimony from those who were there, including those whose job it was to protect the concert goers, both before the bomb and after and from the public inquiry into the atrocity, exploring the wider context to the events of the evening, including the role of MI5, the background of the Abedi brothers and the response of the emergency services on the night.