Steve Backshall and his team have travelled over 7,000 miles from where their Pole to Pole journey began, to the Pantanal in Brazil. It's a watery wilderness and home to more monster jaws and claws than just about any other place on the planet. Here they're on the search for an animal that has eluded Steve his whole life, the number one jungle predator - the jaguar. Then with their Pantanal mission complete, the team move on to Patagonia. They are here to see an animal that is possibly the greatest predator on earth and witness its unique method of hunting - the killer whale.