Filmmaker Werner Herzog combs through the film archives of volcanologists Katia and Maurice Krafft to create a film that celebrates their legacy.

A doomed love triangle between intrepid French scientists Katia and Maurice Krafft, and their beloved volcanoes.

With stunning views of eruptions and lava flows, Werner Herzog captures the raw power of volcanoes and their ties to indigenous spiritual practices.

Documentaries by Katia and Maurice Krafft feature some of the amazing footage shot by the renowned volcanologists, who perished in 1991 while filming a volcano in Japan. The duo documented more active and erupting volcanos than any other scientists in the world, and their dedication shows in Deadly Peaks and Killer Volcanos, two educational films that capture the scientists on the edge of a hot ash blast and floating on a lake of sulfuric acid. The films visit Mount Kilimanjaro and examine some of the less-known dangers such as carbon monoxide gas that builds under crater-formed lakes. They also take an in-depth look at the eruption of Mount St. Helens and the lengths to which people will go to save their communities. Venturing to places where most people would never dare, the Kraffts gave their lives to promote the study of volcanos and left behind a legacy of courage in the name of science. --Shannon Gee

Documentaries by Katia and Maurice Krafft feature some of the amazing footage shot by the renowned volcanologists, who perished in 1991 while filming a volcano in Japan. The duo documented more active and erupting volcanos than any other scientists in the world, and their dedication shows in Deadly Peaks and Killer Volcanos, two educational films that capture the scientists on the edge of a hot ash blast and floating on a lake of sulfuric acid. The films visit Mount Kilimanjaro and examine some of the less-known dangers such as carbon monoxide gas that builds under crater-formed lakes. They also take an in-depth look at the eruption of Mount St. Helens and the lengths to which people will go to save their communities. Venturing to places where most people would never dare, the Kraffts gave their lives to promote the study of volcanos and left behind a legacy of courage in the name of science. --Shannon Gee

Travel around the world for a firsthand look at volcanoes - perhaps the most dazzling but destructive natural force on earth. Massive volcanic eruption can turn day into night, releasing the power of an atomic blast, spewing toxic avalanches of lava, gas, and ash. National Geographic Video transports you to some of the world's most notorious volcanoes, including Mount Pinatubo in the Philippines and Japan's Mount Unzen. Join volcanologists in their dangerous quest to forecast eruptions and save lives, putting you in the middle of the explosive excitement and human drama of Volcano: Nature's Inferno.

The film is about the life of the Krafft couple, from Maurice's first clim on stromboli at the age of seven to their tragic death in 1991 on Mount Unzen in Japan. The couple were scholars, film-makers, researchers and photographers who made volcanology the main purpose of their life. Together they filmed over 800 hours on 128 erupting volcanoes and they made over 450,000 negatives of great aesthetic and scientific value.

A 1987 program examining the work of Maurice and Katia Krafft, who studied and filmed volcanoes around the world before their deaths in a 1991 volcanic explosion. Scenes include a lake of molten lava in Central Africa; an eruption in Iceland; an evacuated school being devoured by Mount Etna.