Shark expert Kina Scollay and his elite team return with a unique one-person submersible, the Mechashark, to a top-secret location off New Zealand attempting to do something that's never been done: locate a great white shark mating ground.
Alison Towner and her team investigate a new great white hot spot off the coast of South Africa. Equipped with cutting-edge fin cameras, tracking tags and underwater surveillance, researchers unveil unusual behavior in these massive great whites.