At the bottom of South America, where the Atlantic and Pacific Oceans collide, is Patagonia, one of the last great wild Edens on Earth. Journey to this breathtaking subantarctic region and its crown jewel-Tierra del Fuego-a beautifully desolate island at its most southern tip. With stunning footage, National Geographic offers a wondrous glimpse into the pristine haven that is Patagonia.

National Geographic Explorer investigates the execution-style murder of six mountain gorillas in Virunga National Park. Their search reveals corruption and how Virunga has become one of the most dangerous places on earth.

From award-winning filmmakers Beverly and Dereck Joubert, comes the unbelievable story of the black rhino and those who are fighting to save the last of these amazing creatures. Infuriated and desperate after witnessing poachers kill the last black Rhino in Botswana, the Jouberts enlisted the help of the Botswana Defense Force and began a massive relocation effort. After years of hard work, a small population of black rhinos is now thriving in Botswana. National Geographic's Rhino Rescue brings to life the incredible story of the black rhinos' rise from extinction.

Three-quarters of Earth is an alien world, lying beneath the surface of the oceans. And although it encompasses over half of the world's species, we know more about the surface of Mars than the bottom of the ocean. It's only recently that science has penetrated this world, revealing extraordinary life forms and vast sweeping landscapes on a scale that defies imagination. If we could remove the water, what would we see? Using CGI animation, based on the latest scientific research, Drain the Ocean explores one of Earth's last great frontiers as never before-revealing unimaginable landscapes more dramatic than anything on dry land.

It was once known as "the place where Noah left his Ark": 1,500 square miles of lush floodplains in central Mozambique, packed with wild animals. But 15 years of civil war has taken a heavy toll-and many species have been almost completely wiped out. Journey with National Geographic to Mozambique's Gorongosa National Park and discover what is being done to bring this African oasis back to its former glory.