Ten years on from the global financial crash, this documentary tells the extraordinary story of how a small Scottish bank briefly grew to become the biggest in the world before collapsing and triggering the largest financial bail-out in British history. It focuses on a single day, 7 October 2008, when the Royal Bank of Scotland collapsed and almost took the entire UK banking system down with it. This dramatic financial thriller, set over 24 hours, is intercut with the story of the amazing rise and shocking fall of RBS.