On 30th January 1972 the British Army shot dead thirteen unarmed civilians on a civil rights march in Derry, Northern Ireland. At the subsequent Tribunal of Inquiry, Lord Chief Justice Widgery exonerated the soldiers and blighted the reputation of those who were killed and wounded by describing them as gunmen and bombers. In 1998 a new Tribunal of Inquiry was announced into the day that has become known as "Bloody Sunday". This documentary follows the course of the Inquiry from the point of view of the families of the victims as they travelled between Derry and London over a five year period. The filmmaker Margo Harkin was a witness to Bloody Sunday and gave evidence to the Tribunal of Inquiry which is expected to report in late 2007.