Synopsis

Researcher Zeb Hogan travels to Cambodia to find and study the little-known giant stingray.

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Follow Dr. Zeb Hogan on his journey to find the largest freshwater fish in Australia: the freshwater sawfish.

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Follow Zeb Hogan as he goes in search of the biggest and oldest of North America's river monsters: the White Sturgeon.

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Follow Dr Zeb Hogan on his quest to find what could be the world's largest and most deadly freshwater fish: the giant freshwater stingray.

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Aquatic ecologist Dr. Zeb Hogan teams up with kayaking experts to discover what monster fish are lurking beneath the surface in Rio Roosevelt.

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They are carp from Asia which can jump 10 feet in the air at the sound of a boat motor, turning a day on the water into a boxing match.

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Synopsis

Synopsis

Synopsis

Synopsis

Dr Zeb Hogan travels to the American Midwest in search of the paddlefish, one of the largest, oldest and most bizarre -looking freshwater fish on the planet.

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Synopsis

Giant freshwater fish are studied at Khone Falls on the Mekong River in Laos.

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Synopsis

Zeb Hogan travels to Spain in search of the invasive Wels catfish -- a monster fish capable of growing more than 8 feet long, eating birds, cats, and, as some legends claim -- even humans! The voracious predator is not native to the region, and biologists fear it could be destroying the local ecosystem.