This special Deadly Pole to Pole episode has got serious bite - it's all about sharks. Steve travels the globe to swim with these misunderstood predators and prove they are not the brutish killers many people believe. In the Bahamas, Steve uses time-slice cameras to see what makes a shark's bite so deadly, but there is more to these perfect predators than jaws. Steve investigates the highly honed superpowers of the hammerhead shark. Finally, Steve puts his theory that sharks are not mindless killers to the ultimate test. In Hawaii, he swims with the oceanic white tip, a shark with a man-eating reputation, before heading to Mexico to dive outside of the cage with the most feared shark on the planet, the great white.