Lehman's collapse: Tony Lomas, man who tried to save bank
13 September 2013 Last updated at 18:39 BST
It was the bank collapse that triggered the credit crunch and the worst global recession in sixty years.
When Lehman Brothers went under, it had a domino effect on banks around the world.
So what was it like at the centre of that storm?
Tony Lomas, lead administrator for Price Waterhouse Coopers, was called in at the eleventh hour to try and save Lehman Brothers from collapse. He tells the BBC how five years later, he is still trying to find a resolve to one of the biggest banking crisis ever.