Desc: Montseny, a hidden tragedy: Directed by David Fontseca. The 3rd of July 1970 a plane crashed in the Montseny Mountain in which the 112 passengers died. Currently, fifty years later, the families and volunteers that worked in the rescue efforts still waiting for official explanations. Through interviews and unpublished images and documents, this documentary film has the aim of explaining the circumstances of the worst accident of Spain, at the same time that it wants to honor the victims of the Dan Air 1903 flight. A Televisió de Catalunya production in co production with a.La Kaseta Ideas Factory and Punttv.