Content from Railsplitter Pictures

On September 11, 1941, the U.S. War Department broke ground on a new headquarters that would rise to become the ultimate symbol of the American military. Sixty years after construction began, a hijacked airliner crashed into the building.

Piecing together information from secret sources and a two-hundred-year evolution of the White House, investigative journalists and government insiders weigh in on the mystery of an unusual white box and a top-secret construction project dubbed the "Big Dig" that took place outside of the West Wing from 2007-2012. Using little known images, previously classified material and detailed graphics, the search for truth reveals not only what secrets might lay below the White House, but how their existence could affect democracy as we know it.

Competitors re-create weapons from historical periods ranging from Japanese katanas to medieval broadswords to ancient throwing blades. Each entry is judged on its artistry as well as its functionality and accuracy.

An elite team of Sasquatch specialists journey into the unforgiving Oregon wilderness in search of Bigfoot. The three-week expedition, based on science and expertise, may finally pull the elusive beast out of the pages of legend and lore and into reality.

Utilizing a team of reputable professionals working alongside "The Secret of Skinwalker Ranch" veterans, this series explores other sites of unusual activity and "high strangeness" phenomena in an effort to discover if the activity documented on Skinwalker Ranch is not only real, but pervasive.

The story of how a fatherless young soldier full of personal ambition becomes a leader of men willing to sacrifice all for the common cause. How a once-loyal British subject rises to battle an empire in a liberty-or-death campaign to forge a new nation. And then how, at the zenith of his power, the victorious general voluntarily steps down, becoming what King George III would call “the greatest man in the world.”

A deep dive into the decade's untold history, revealing secrets, and prespectives.

Throughout history, the skilled craft of the butcher has been essential to human survival. In early civilizations when foodborne diseases were claiming lives, it was the butcher with their precise tools and keen skills who warded off death. This vital craftsman became a fixture in every town across America. Today, there are thousands of people who continue this noble tradition but only a select few with the right expertise can be considered a “Master Butcher.” Now, for the first time comes an extreme, high-stakes competition where best-in-class butchers battle in a showdown designed to put their knowledge, strategy and technique to the ultimate test. With their sharp knives and even sharper skills, these butchers carve their way through painstaking challenges, use their expert talent to adapt to historical twists, and reveal the fascinating secrets of the butcher’s world.