Gigantic Killer Fish

S1, E8: Are monster fish lurking in freshwater lakes and rivers? From the Arctic Circle to the Amazon, follow an expedition to find the biggest and nastiest giant fresh water fish, from catfish large enough to swallow children whole to trout as large as a boat. Scientists will deploy giant lures and underwater cameras in a search for monster fish. One-part history, one-part science and one part monsters discover the truth behind legendary monsters.