Discover Shark Week's biggest breakthroughs this year.

Marine biologist Luke Tipple interviews the stars of the Shark Week show, "Shark Lockdown." Clark Gayford and Mark Erdmann discuss their harrowing adventures as the global lockdown lured New Zealand's biggest great whites out of hiding.

Marine biologist Luke Tipple interviews the stars of the Shark Week show "Jaws Awakens." Chris Fallows and Jeff Kurr discuss their exploration of New Zealand's waters trying to find a nearly 20-foot long, two-ton shark named Fred.

Marine biologist Luke Tipple interviews the stars of the Shark Week show "Extinct or Alive: Land of the Lost Sharks." Forrest Galante talks about his tireless pursuit to find three unique sharks lost to science for nearly 100 years.

Marine biologist Luke Tipple interviews the stars of the Shark Week show "Great White Serial Killer Extinction." Jimi Partington and Michael Harris investigate the dwindling California sea otter population and the Great White Shark.

Marine biologist Luke Tipple interviews the stars of the Shark Week show "Mako Nation." Riley Elliott and Andy Casagrande discuss the mysteries they uncover about the Mako Shark in one of their last strongholds -- New Zealand.

Marine biologist Luke Tipple interviews the stars of the Shark Week show "Lair of the Great White." Dr. Craig O'Connell and Marc Payne want to know why the Great White Sharks are so much more aggressive off the coast of Western Australia.

Marine biologist Luke Tipple interviews the stars of the Shark Week show "Tiger Shark King." Austin Gallagher and Christine de Silva discuss their mission to understand the assault on a 14-foot tiger shark in the Caribbean.

The team checks into a historic hotel with dark past in Buffalo, NY. Disembodied voices and shadows are everywhere, but the haunted elevators prove most terrifying when communications fail and they each find themselves alone.

The owner of a bed and breakfast fears paranormal activity on the property may be having a negative impact on her family and guests. The Ghost Brothers head to New Hampshire to investigate the cause of the haunting.

The team heads out to Lake Shawnee Fun Park, an abandoned amusement park with a tragic and deadly past. They then visit a residence in rural West Virginia to investigate a creepy, persistent haunting with family ties.

Phil and Jessica head to Lake Lanier -- the deadliest lake in America -- to uncover rumors of drownings and ghostly encounters.

Jack and Katrina travel to Juneau, AK, to conduct the first-ever investigation of the Alaskan Hotel. Built for luxury, the historic hotel has developed a reputation for demonic activity due to its notorious criminal past.