The dramatic history of Ireland throughout the 20th century is the subject of this concluding episode of Fergal Keane's series. The War of Independence in the south and the fierce resistance that ensued in the north lead to a partition of the island for the first time in its history. Keane charts the developments of the two religiously dominated states, driven by big personalities like Edward Carson and Ian Paisley in the North and Eamonn de Valera and Charles Haughey in the South, up to present day. He follows Northern Ireland's troubles and peace process and the boom and bust of the Celtic Tiger years in the Republic.