Shark expert Matt Dicken and Shark Week legend Dickie Chivell embark on a relentless quest to locate an elusive and colossal shark named Dutchess, who mysteriously vanished from Gansbaai, South Africa years ago.

Dr. Tristan Guttridge believes Hammerhead sharks can reach monster sizes by hunting other species of sharks. The only way to prove his theory is to obtain tissue samples from some of the largest sharks on the planet.

Shark filmmakers hunt for "Air Jaws" in New Zealand's hidden launch pad. Andy Casagrande and Jeff Kurr seek the second-ever breaching great white in these waters to uncover history-making secrets.