Arthur F. Binkowski

A horrific killing, of a kind likely never seen before on television, tears apart the family of an Alaskan brown bear cub, and determines his chances of surviving in a wild grizzly kingdom.

From Lowndes County, Alabama to the Nez Perce Tribe in Idaho, meet community activists on the frontlines fighting for water justice and equity.

National Geographic: Incredible Human Machine takes viewers on a two-hour journey through an ordinary, and extraordinary, day-in-the-life of the human machine. With stunning high-definition footage, radical scientific advances and powerful firsthand accounts, Incredible Human Machine plunges deep into the routine marvels of the human body. Through 10,000 blinks of an eye, 20,000 breaths of air and 100,000 beats of the heart, see the amazing and surprising, even phenomenal inner workings of our bodies on a typical day. And explore striking feats of medical advancement, from glimpses of an open-brain surgery to real-time measurement of rocker Steven Tyler's vocal chords.

Track the stories of the pilots of Vietnam's Operation Rolling Thunder and their race to survive their 100-mission goal.