Three great whites are spotted in the waters off Oahu, but another one could be lurking just below the surface.

The special is in partnership with The Washington Post and staff writer Christian Davenport, whose depth of experience allowed him to gain inside access to key players.

The tornado that struck El Reno, Oklahoma, on May 31, 2013, defined superlatives. It was the largest twister ever recorded on Earth.

Tim Laman a photographer for National Geographic and ornithologist Ed Scholes have been traveling to some of the most remote jungles the world has to offer in search of observing and photographing all 39 species of tropical bird. This particular group of birds are entitled as the “Birds of Paradise” and can be found in some of the last truly wild locations of New Guinea.

The Serengeti is one of the most brutal environments on the planet. It's also home to the tough Vumbi lion pride. Using ground-breaking new tools (including a lion-proof peeping Tom robot), National Geographic explorers Michael "Nick" Nichols and Nathan Williamson embed with the lions to reveal a never-before-seen view into a world with razor thin margins between life and death.

Using cutting-edge scanning technology and state-of-the-art CGI, a team of experts creates the first high-resolution 3D digital twin of the Titanic wreck. Through a groundbreaking immersive investigation, they uncover the ship’s final moments, shedding light on the acts of heroism and cowardice aboard—and revealing the true story behind the sinking of the “unsinkable” ship.