After two fatal Great White shark attacks occurred off a small Mexican fishing village - including one in which a victim was decapitated - shark attack survivor Paul De Gelder joins shark investigator Brandon McMillan and local biologist Gador Mutaner to launch a plan to ID the killers and keep the villagers in the Sea of Cortez safe.

Using cutting edge technology, Dr. Tristan Guttridge, Annie Guttridge, Paul De Gelder and Skye Minnis unveil the secrets of Bull, Tiger, Hammerhead, Great White, and rare shark species' jaw mechanics and delve deep into how these sharks' jaws and teeth deliver lethal attacks.

Marine Biologists Tom "The Blowfish" Hird and Leigh de Necker go searching for the fattest Great White Sharks off the coast of New Zealand and attempt to obtain their poop to study what they are eating. Using cutting-edge science, they aim to weigh a great white accurately for the first time, revealing if they can reach a staggering 6,000 pounds.