National Geographic reconstructs the attack on the nation's capital moment by moment entirely through home video; fire, rescue, and police footage; and news coverage. Footage from the Pentagon crash site taken shortly after impact captures a raw view of the devastating aftermath. Cameras throughout the city document the chaotic evacuation from the Capitol and White House as air traffic controllers grapple with the potential of another hijacked plane targeting the White House.

The world watched in horror on March 11, 2011, as the fourth largest earthquake ever recorded crippled Japan and triggered a massive tsunami that swallowed entire communities, leaving an unprecedented catastrophe in its wake. All the while, amateur videographers, news crews, tourists and countless others were recording the sights and sounds of the unfolding chaos. This disc presents a powerful firsthand look at the tragedy entirely through the eyes of those who experienced it.

This program reconstructs Hurricane Katrina as it happened, entirely through the eyes of those who experienced it. From Biloxi to Bay St. Louis, from Slidell to the Superdome, this special captures the storm and its aftermath in all its epic human complexity.

The "super outbreak" of April 26-27 alone involved more than a hundred separate twisters, killing over 300 people and cutting a path of destruction across the south. Witness: Tornado Swarm 2011 tells the story of this once in a century event, as captured by those who lived to tell about it.

Eyewitnesses to earthquakes, tornadoes and avalanches recount their experiences.

America's wars in Afghanistan and Iraq have taken a heavy toll on both service people and their families. Children growing up without a parent; husbands and wives separated; parents wondering every day if they'll ever see their sons or daughters again. For many military families, this almost unbearable strain makes the moment they're finally reunited that much sweeter.