The Titanic disaster spurs 19-year-old Annabelle Worthington to leave her privileged life for one of service. Fleeing scandal brought on by the end of her marriage, she winds up in France, working in a hospital for those wounded in WWI. She almost succeeds in forgetting her past, until a chance meeting brings it all rushing back.

Harry Lyon was a rational man, a cop who refused to let his job harden his soul. Then one fateful day, he was forced to shoot a man—and a homeless stranger with bloodshot eyes uttered the haunting words that challenged Harry Lyon's sanity:"Ticktock, ticktock. You'll be dead in sixteen hours...Dead by dawn...Dead by dawn...Dead by dawn..."

On June 1st, 2009, Flight AF447, an Air France Airbus A330 flying from Rio de Janeiro to Paris, disappeared over the Atlantic Ocean with the loss of all 228 lives. How could a state-of-the-art airliner with elaborate electronic safety and navigation features and a faultless safety record simply vanish without trace? NOVA assembles a team of seasoned pilots, engineers and safety experts to examine the evidence that emerged in the weeks following this...

Follows a team of archaeologists mapping the ruins of the ancient Roman city of Baiae that sank into the ocean.

In October 2009, a striking portrait of a young woman in Renaissance dress made world news headlines. Though it had been purchased two years earlier for around $20,000, the portrait is now thought to be an undiscovered masterwork by Leonardo da Vinci worth more than $100 million. Did cutting edge imaging analysis help tie the portrait to Leonardo? NOVA meets a new breed of experts who are approaching 'cold case' art mysteries as if they were crime...

Are leaders born or made? Where does ambition come from? How does adversity affect the growth of leadership? Does the man make the times or do the times make the man? Goodwin draws upon four of the presidents she has studied most closely, Abraham Lincoln, Theodore Roosevelt, Franklin D. Roosevelt, and Lyndon B. Johnson (in civil rights), to show how they first recognized leadership qualities within themselves, and were recognized by others as leaders....

A look at some of the planet's great gatherings, creatures that come together in inconceivable numbers, sometimes in millions, billions, and even trillions. Some gather to breed, migrate, for protection, or simply to keep warm. But in the process, a kind of super-organism is created in which individual intelligence is superseded by a collective consciousness that shares information and moves with a single purpose for the benefit of all.

During the Korean War, Soviet and U.S. jet fighters clashed in the fastest dogfights ever seen. The most advanced planes of their day, the MiG-15 dueled with the F-86 Sabre over MiG Alley, a strip of airspace along the Korean-Chinese border. Over 30 U.S. and British pilots disappeared during combat over MiG Alley, leaving their family members today with painful unanswered questions. Traces the efforts of U.S. government investigators, forensic experts,...

Follow a team of international scientists documenting an archeological sensation: the exploration of royal tombs beneath the ancient Mexican city of Teotihuacǹ. Not much is known about this long-lost society. When archeologists discover evidence of a sacrificial chamber beneath the famous Pyramid of the Feathered Serpent, they find the clues that may finally tell us who these mysterious people were.

The ancient Maya civilization of Central America left behind an intricate and mysterious hieroglyphic script carved on monuments and painted on pottery and bark books. This program highlights the ingenious breakthroughs that cracked the code, unleashing a flood of dramatic new insights about the ancient civilization.