Plunge into the ocean depths with renowned filmmaker and shark expert Michael deGruy as he takes you to the underwater realm of sharks. You'll swim terrifyingly close to see these efficient predators in action, and watch in fear as deGruy re-enacts a shark attack that cost him part of an arm fourteen years earlier. You'll also discover the incredible physical and behavioral diversity of the shark family, from the seven-inch dwarf dog shark to the fifty-foot whale shark. Through spectacular animation, enter a shark's body to learn how it hones in on its prey using its unique sense of electro-reception. And join in the discovery of a gigantic deepwater species known as "Megamouth," with the first ever close-up footage.