On the 10th Anniversary of the tsunami that devastated South East Asia on December 26, 2004, we tell the definitive story of one of the deadliest natural disasters in recorded history and examine its enduring legacy. The film will present a definitive account of how and why the tsunami happened, weaving together archive footage, CGI and interviews with experts and eyewitnesses. We will reveal the very latest developments in how we understand and forecast tsunamis, using historical data to model the disasters of the future.