Robin Hood: you know the stories, you know the hero – or do you? How did he elude so many sheriffs? Overcome so many adversaries? Alone ...or was there a man on the inside? History paints Sir Guy of Gisborne blacker than black, the enemy of a great English hero, but on his death-bed Guy reveals to his confessor the secrets of his double life – as spy and covert enemy of the very sheriffs he served.