Pioneer Productions.

Rocky Mountain rescue workers discover a distress call to locate five climbers is really a trap set by a merciless international terrorist, and millions of dollars and their own lives hang in the balance.

Looks at the scientists striving to understand the forces at work behind last year's tornado outbreak. Could their work improve tornado prediction in the future? Nova also talks to people whose lives have been upended by these extreme weather events in an effort to learn how we all can protect ourselves and our communities for the future.

Millions of people around the world live in the shadow of active volcanoes. From Japan's Mount Fuji to the 'Sleeping Giant' submerged beneath Naples to the Yellowstone 'Supervolcano' in the United States, Nova travels with scientists who are attempting to discover how likely these volcanoes are to erupt, when it might happen, and exactly how deadly they could prove to be.

On 12/26/04 a series of tidal waves killed thousands and devastated communities around the Indian Ocean. With around 100 tsunamis striking the world's coastlines each decade, Nova investigates what made the recent event so powerful and catastrophic.

Picking up from this winter's Costa Concordia disaster and looking both back to the Titanic disaster a century ago, and into the future of sea travel, Nova looks at questions about cruise ship safety and the science of the ships' buoyancy.

Stephen Hawking unfolds his personal, compelling vision of the biggest question of all: Who or what created the universe in which we live? The groundbreaking series into the Universe with Stephen Hawking combined cutting-edge computer graphics with Hawking's witty, distinctive and incisive world view. Now, the journey is taken a step further, as physics and cosmology become tools to answer questions that philosophers have struggled with for thousands...

In its worst crisis since World War II, Japan faces disaster on an epic scale: a rising death toll in the tens of thousands, massive destruction of homes and businesses, shortages of water and power, and the specter of nuclear reactor meltdowns. It combines on-the-spot reporting, personal stories, compelling eyewitness videos, and exclusive helicopter footage for a unique look at the science behind the catastrophe.

It may be more famous now than any time in its 1,300-year history as the setting of Downton Abbey, but England's Highclere Castle has its own stories to tell. In its heyday, Highclere was the social epicenter of Edwardian England. See how all the inhabitants of Highclere lived, from the aristocrats above to the army of servants toiling 'below stairs'. Also find out from the current inhabitants, Lord and Lady Carnarvon, what life in a fairytale castle...

Featuring eyewitness testimony, NOVA takes an in-depth look at what made Hurricane Katrina so deadly and analyzes how, despite technically sophisticated flood and storm defenses, this event has resulted in unprecedented destruction for the Gulf Coast.

From the width of a football field to the size of a small city, the space rocks called asteroids have the potential to be killers. But some asteroids may be loaded with billions of dollars' worth of iron, nickel and even platinum. Will asteroids turn out to be our economic salvation or instruments of extinction?