South African great whites are on the brink of extinction, but experts believe there is at least one breeder shark left in the water surrounding Bird Island. A team will search and tag the last female great white mature enough to carry on the species.

In the icy waters of Alaska, off populated beaches of New York and lurking in ghostly shipwrecks off the coast of North Carolina, scientists have discovered three sharks that have developed unique and deadly ninja skills.

Shark researchers travel to Andros Island in The Bahamas to determine if it's a new great hammerhead hotspot, and they're using reports of a half-octopus, half-shark creature known as the Lusca to help them locate massive sharks for their study.