Animal Planet's International wildlife conservationist and biologist Forrest Galante travels to the mysterious island of Papua New Guinea to definitively prove that sharks are evolving to walk on land.

Shark expert Kina Scollay and his elite team return with a unique one-man-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."

A team of shark experts re-imagine ancient diving bell technology to create a research platform they call Shark Dome. Dr. Austin Gallagher and Andre Musgrove enter the Shark Dome to allow them to free dive at depth and get closer to great white sharks than ever before.