Shark Week

Master of Horror Eli Roth presents the official countdown to Shark Week 2017. There's sneak peeks at brand-new shows, a countdown of the top 5 close calls in Shark Week History and a variety of viewer-submitted viral videos.

Dr. Michael Domeier returns to Shark Week with a group of experts to find out if great white attacks in California are committed by the same shark.

Sharks are the world's fastest and most efficient predators. Michael Phelps is our greatest champion to ever get in the water. A Shark Week first brings an event so monumental, no one has ever attempted it before. It's Phelps vs. Shark and the race is on!

Paul de Gelder teams up with Dr. Mark Meekan to travel to one of the sharkiest places in the world -- Australia's Cobourg Peninsula. They want to know what happens when 14-foot crocodiles move into shark-infested waters.

Shark Week's Dr. Guttridge tags and follows giant hammerhead sharks to learn what brings them to Bimini in the Bahamas in early November.

Greg Skomal and Joe Romiero study the annual phenomenon that brings 30 species of shark into the waters of southern New England.

Shark Week divers and scientists unlock the mysteries of a new great white hotspot known as Isle of Jaws.

Shark Week experts are in search of some of the world's strangest sharks. Dr. Craig O'Connell goes to the Bass Strait for sawsharks while Victoria Elena Vasquez and Dr. David Ebert go into the Tokyo Bay to find the goblin shark and a luminescent shark.

Dr. Chris Lowe returns to Shark Week to find out why more and more great white sharks are hunting out of season on the Los Angeles coast.

Dr. Craig O'Connell researches the likelihood of an increase in great white population around New York now that seals have found their way to New York Harbor.

Underwater cameraman Devon Massyn and a team of explorers act as human lures as they float in a one-of-a-kind shark cage, 500 miles into the Gulf of Mexico, where they hope to encounter its deadliest predator.

Across the world sharks congregate and concentrate around volcanoes and volcanic islands. Dr. Mike Heithaus dives into nature's infernos to find out why they are shark hot spots.

Dr. Hazin heads to Brazil to use a shark-transport method to reduce the number of shark attacks on humans.

Ornella Weideli and Dr. Tristan Guttridge find out more about why and where sharks come together at different locations around the world.

Craig O'Connell and his team investigate why a great white shark from South Africa traveled 1,500 miles up the the African coast to the remote island nation of Madagascar.

Luke Tipple returns to Shark Week with his team to unravel the mystery behind one of the ocean's strangest and rarest creatures -- the sawfish.

Shark Week 2017 presents the ultimate rundown of the greatest moments of the year. This adrenaline-spiking collection features the closets calls, biggest bites, greatest gadgets and viewers' top picks for the best of Shark Week history.

Michael Phelps travels to the Bimini Shark Lab to visit Doc Gruber and Dr. Tristan Gutteridge to learn everything shark. They dispel the myths and common misconceptions and also teach Michael how to safely dive with sharks.

Comedian Chris Hardwick, actress Regina Hall and marine biologist Craig O'Connell weigh in on the battle between East and West-Coast sharks. Plus, Eli debunks the web's most viral shark videos.

Oscar-winning actress and producer Charlize Theron and veteran Shark Week cinematographer Andy Casagrande share stories of the "sharkiest" place on Earth, before answering Shark Week fan questions.