Shark Week

Dr. Neil Hammerschlag is the world's leading tiger shark expert. Now, he's on a quest to answer what he calls the trifecta of tiger shark science: where do these giant sharks mate, where do the pregnant females gestate, and where do they give birth? He hopes to find answers by tagging and tracking 40 individuals across a shallow area off the Bahamas called Tiger Beach. Second only to great whites, the tiger shark's killing power and voracious appetite is legendary - and Neil has to deal with some aggressive sharks while on expedition.

Professional shark tagger Keith Poe, and marine biologists Greg Stuntz, Matt Ajemain and their team use state-of-the-art technology to try to document a live-predation of a thousand-pound mako shark -- what fishermen call a "grander." Granders are enormous makos that make a kind of transformation when they reach 10 feet and 1000 pounds - they become more secretive and begin to hunt bigger prey, like seals. And they're hard to find on the East Coast - until Joe Romeiro and team jump in the water after dark and come face to face with them.

In 2016, award-winning shark cinematographer Andy Casagrande discovered that great white sharks had strangely and completely disappeared from the Neptune Islands off South Australia. Where did the sharks go? Searching west along the known great white migration route, he stumbles upon an incredible discovery - a concentration of all male great white sharks off an uncharted island. Andy calls in marine biologist Dr. Jonathan Werry, and together they get up close and personal with a dozen large great whites in the hopes of solving two of the most closely guarded of all the great white's secrets... where they mate and where they have their young.

Using a self-propelled shark cage called "The Explorer", marine biologists Mauricio Hoyos and Grant Johnson will investigate a recent discovery at Guadalupe Island - great whites moving into shallow waters at night. This movement shows that sharks entering shallow water are normal behavior - which would account for some of the shark encounters happening with greater frequency in the shallows along coastlines.

Marine biologist Greg Skomal and the REMUS SharkCam team return to Guadalupe to find the world's largest great white shark, Deep Blue. This time, they deploy two robot subs: one that dives to 300 feet, and another that goes to 2000. Together, they build a profile of how the great white uses the entire water column. The team uncovers hunting techniques and strategies great whites use to ambush their prey - and film a great white's attack on the sub!

Shark encounters are increasing around the globe. The solutions to deal with the public's growing anxiety range from culling to using nets and drumlins - all of which kill sharks. Dr. Craig O'Connell believes he has developed a system that will prove once and for all that sharks and people can peacefully coexist - and live!