Twelve-foot-long monster mako sharks compete head-to-head with great whites for prey off the coast of California. Using a custom clear, acrylic diving bell, Dr. Austin Gallagher and legendary free diver Andre Musgrove get up close with both predators and track makos breaching eight feet out of the ocean.

Tiger sharks are washing up dead on the beaches of Western Australia with no sign of attack. Forrest Galante has a theory that deadly sea snakes are turning these apex predators to prey. In the battle of shark against snake, are snakes winning?

When a 16-foot great white invades Indonesia's warm coast of Bali, it sparks fears that they are adapting to hunt the tropical beaches where millions of people swim every day. Dr. Craig O'Connell and Madison Stewart are on a mission to find Tropic Jaws and discover why they left the cold water environment that they have called home for thousands of years.