Tsunami: The Wave That Shook The World tells the human story of how the catastrophic events unfolded during the morning of Boxing Day 2004. Powerful survivor stories are told through raw, personal testimony. A British holidaymaker remembers the desperate search for his brother in makeshift beachside morgues in Thailand; an Australian skipper describes his experience trying to control his boat off Phuket, with his three children on board, as it spins out of control on top of a gigantic tsunami wave; and a Sri Lankan woman recalls being trapped inside an overturned railway carriage - with her parents and younger sister - hit by a wave and submerged in water. Never-before-seen archive and reimagined visual effects show how twenty years on, trauma and resilience have defined a generation.