It was one of the greatest natural disasters of all time. On the morning of Boxing Day 2004, a massive tsunami hit the coast of the Indian Ocean. More than 230,000 people died, including many holidaymakers from Germany and France. On the occasion of the 20th anniversary, survivors tell their stories. How has the disaster affected their lives to this day?

Acclaimed Australian journalist Ray Martin and remarkable Australians return to the epicentre of the tragedy, uncovering incredible stories of hope and resilience.

Three days before the tsunami hits Khao Lak, Jens Lind and his family travel on after a few weeks in paradise. With him, he has filmed material with people and moments from a place that would soon disappear. In the ten years that have passed, Jens has returned to the beach and the survivors. The documentary "Khao Lak" is a personal observation of a place that was washed away and rebuilt. At the center of the story is the unique little bungalow-place called "Mai's Quiet Zone".

February 2010. On a remote island in the Pacific Ocean called Juan Fernández, everyone slept in town. But a 12-year-old girl felt a tremor and warned of imminent danger.

There's no definitive separation as long as there is memory'. Since the Tsunami hit the northern part of Japan's coast in 2011, more than 20 thousand people lost their lives, and many others are still missing. As time went by the families of the victims abandoned all hope and stopped looking for their loved ones. However, this is the story of two men that are still fully committed to their respective searching activities. Even though their backgrounds are extremely different, both share a strong force of will and firmly wish to keep alive the memories of the ones that went missing. Perseverance is what pushed an ex-convict to look for redemption by helping the victims' families to find the remains of their loved ones, and perseverance is what brought a bus driver to start to dive in order to search for his wife.

On 11 March 2011, an earthquake caused a tsunami to hit the Tōhoku (Northeast) region of Japan. In this film, survivors of the tsunami rebuild as cherry blossom season begins. The film is a stunning visual haiku about the ephemeral nature of life–and of the healing power of Japan's most beloved flower.

A worldwide scientific investigation on tsunamis. Thanks to exclusive access in Palu, Indonesia, follow the UN’s hand-picked scientific team of "tsunami hunters". Where do they strike? How do they submerge us? What can we do to survive them?

A minute-by-minute account of the Boxing Day 2004 Tsunami told through amateur video footage of people who were there.

An investigation by Professor of Geological Sciences, Roger Bilham, of the science behind the earthquake and tsunami off the coast of Japan on March 11, 2011.

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The story of a camera that perished in a Tsunami. The Film shares special moments that the Filmmaker experienced with his camera, a special bonding over a period of four years, creating cinematic imagery, relating, exploring, seeking and interpreting notions of his reality. It is a memory of a camera which perished in the tsunami, along with its last filmed footage – elusive images, evoking multiple possibilities, seeking parallels and new perspectives.

The globe learned on December 26, 2004, that tsunamis can bring death and devastation to the world's coastlines. The product of undersea earthquakes and volcanic eruptions, tsunamis can race across oceans at more than 500 miles an hour, leaving a huge wake of destruction when they hit shore. Because it is difficult for scientists to predict how large these massive waves can be, tsunamis are one of the least understood of nature's forces, and one of the most dangerous. With insight from some of the scientific community's foremost researchers, and vivid accounts from past tsunami survivors, Tsunami: Killer Wave depicts nature at its most extreme, profiles the efforts being made to curb its effects, and illustrates the financial, physical and emotional toll it can leave on its victims.