Sue Perkins tells the true story behind the von Trapp family, portrayed on the big screen almost 50 years ago in The Sound Of Music. She heads to Austria to discover why Salzburg seems to resent the film that put it on the map, meeting locals with memories of Maria von Trapp and finding that actor Nicholas Hammond's life has continued to be defined by his role as Friedrich. Sue travels to New York and Vermont, where the family settled and meets 98-year-old Maria, who is the only one of the seven children still alive. Including rare footage from the 1950s, as well as home movies shot during the filming of The Sound of Music itself.