Chronicles the Catholic-vs.-Protestant unrest in Northern Ireland, focusing on four turbulent years from 1968 to 1972. Featured segments include the rise of the Catholic civil rights movement and the outbreaks of violence that followed; the return of British troops and the IRA; and the culmination of Bloody Sunday, the fall of the Northern Irish government. Eyewitness accounts explore the tumultuous origins of a civil war that has lasted nearly 30 years.