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.

Dr. Austin Gallagher and his team of researchers including Liv Dixon, Zandi Ndhlovu, and Dr. Tristan Guttridge, investigate an aggressive population of Hammerhead Sharks in Turks and Caicos, which they believe could be an entirely new species.

There's a growing population of aggressive White Sharks in an unlikely location, Canada. Shark expert Andy Casagrande heads out on an expedition along Nova Scotia's coast to investigate a surge of Great White Shark encounters and figure out if this new population could be the largest in the world.