An Claíomh Solais (The Sword of Light) is set in the Co. Meath Gaeltacht of Ráth Cairn in the months preceding the setting up of the first Irish language television channel, TG4, as a young independent television producer returns to Ireland and installs himself in the Gaeltacht to take part in what he hopes will be a cultural revolution. A parallel subplot deals with Irish nationalist George Moore's return to Ireland to take part in his country's literary revival, and Wagner's opera Siegfried.