Takes viewers on a World War II era journey from Prague to England to the Swiss Alps, as Nazis pursue a Czech scientist and his daughter who are being aided by a debonair British undercover agent.

A researcher at a pharmaceutical company, Marina Singh journeys into the heart of the Amazonian delta to check on a field team that has been silent for two years -- a dangerous assignment that forces Marina to confront the ghosts of her past.

Alice Metcalf was a devoted mother, loving wife, and accomplished scientist who studied grief among elephants. Yet it's been a decade since she disappeared under mysterious circumstances, leaving behind her small daughter, husband, and the animals to which she devoted her life. All signs point to abandonment ... or worse. Still Jenna -- now thirteen years old and truly orphaned by a father maddened by grief -- steadfastly refuses to believe in her...

"Science is a force for good in the world -- at least usually. But sometimes, when obsession gets the better of scientists, they twist a noble pursuit into something sinister. Under this spell, knowledge isn't everything, it's the only thing -- no matter the cost. Bestselling author Sam Kean tells the true story of what happens when unfettered ambition pushes otherwise rational men and women to cross the line in the name of science, trampling ethical...

On July 2nd, communications systems worldwide are sent into chaos by a strange atmospheric interference. At first thought to be meteors, the United States military suspect that a number of enormous alien spacecraft are on a collision course with Earth. After attempts to communicate with the aliens go nowhere, David Levinson, an ex-scientist turned cable technician, discovers that the aliens are going to attack major points around the globe in less...

When John Wesley Powell became the first person to navigate the entire Colorado River, through the Grand Canyon, he completed what Lewis and Clark had begun nearly 70 years earlier--the final exploration of continental America. The son of an abolitionist preacher, a Civil War hero (who lost an arm at Shiloh), and a passionate naturalist and geologist, in 1869 Powell tackled the vast and dangerous gorge carved by the Colorado River and known today...