On February 20, 2016, David Cameron officially set the date for the British public’s vote on whether or not to remain a member of the European Union.

This BBC documentary goes behind the scenes of the Leave campaign, laying bare the ambition, passion, strategy and animosity that propelled those in favour of an independent UK – a political drama fought out in the press that resulted in the resignation of David Cameron and the Conservative leadership contest.

Featuring senior politicians and campaigners including Boris Johnson, Iain Duncan Smith, Nigel Farage and Matthew Elliott, as well as Remain campaigners Michael Heseltine, Alan Duncan and Will Straw.