Documentary about Sir Alex Ferguson's development of Manchester United into a multimillion-pound global business whilst attaining countless trophies along the way.

Sir Alex Ferguson is one of the greatest leaders this country has ever produced.

He was the mastermind of one of Britain's leading brands. Not a soft drink or a smart phone, but a football club: Manchester United.

In 26 years, Sir Alex transformed United into a multimillion-pound global business, picking up every single domestic trophy there is in football along the way. His leadership is unique in the history of world football.

During this extraordinary encounter, BBC political editor Nick Robinson gets up close and personal with Sir Alex and uncovers the secrets of his success. Sir Alex shares his unique insights on leadership that speak to everyone, revealing how he stayed at the top of his profession for so long and, crucially, how best to motivate, discipline and inspire people.

Sir Alex also reflects on the nature of legacy and life after leaving the stage with Manchester United, and how - through his relationships with eminent figures outside football and his teaching - his approach to leadership has found resonance beyond the world of football. Featuring contributions from leading figures in business, politics, military and sport, including Cristiano Ronaldo, Tony Blair, General Sir Michael Jackson, Lord Sugar, Ryan Giggs, Rio Ferdinand, Sir Michael Moritz, Jose Mourinho and Professor Anita Elberse.