For decades, rumors of cocaine-fueled sharks have spread throughout the fishing community. Shark expert Tom Hird travels to the Florida Keys to investigate what happens when the sharks come in contact with the most notorious drug on the planet.

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.