To complement the BBC Two drama 'United', BBC Sport presents a very special documentary looking back at the remarkable career of arguably England's greatest and most iconic footballer, Sir Bobby Charlton. Sir Bobby was a key member of the England team that won the World Cup on home soil in 1966 and part of a Manchester United team touched by success and tragedy in equal measure. Charlton survived the Munich air disaster in 1958, which killed several of his team-mates dubbed the 'Busby Babes'. He became a crucial figure in the club's resurgence, winning two league titles and unforgettably in 1968 the European Cup against Benfica.