On December 26, 2004, the Indonesian province of Aceh was hit by the massive Indian Ocean tsunami that killed 170,000 people and devastated villages and towns. In the wake of the catastrophe, the Indonesian army and local separatist rebels, the Free Aceh Movement (GAM) ended their decades-long war, which took 15,000 lives. In After the Wave, FRONTLINE/World correspondent Orlando de Guzman returns to Aceh, where he had first covered the war, to explore the prospects for continued peace.