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.

Paul de Gelder dives into the Shark Attack Capital of the World to conduct experiments that will confirm what makes up these dangerous waters and determine methods to mitigate the risk.