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Extreme encounters with rare fish are documented in this series.
Season 4, Episode 16
November 15, 2016
The worlds' largest freshwater fish found in the rivers of Mongolia is located.
Season 4, Episode 14
September 7, 2014
The host travels to Nicaragua to study a mega-sized fish that can be found in both freshwater and saltwater environments.
Season 4, Episode 13
August 22, 2014
The host travels to Australia in search of the deadliest river shark species. Included: Bull sharks; Speartooth sharks.
Season 4, Episode 12
August 4, 2014
The host travels to the jungle rivers of Central America in search of giant tarpon.
Season 4, Episode 11
July 28, 2014
The host hunts for a bullseye snakehead, an invasive species of fish rumored to attack humans. Later, he travels to Thailand to learn more about the animal.
Season 4, Episode 10
July 21, 2014
A journey is made into the rain forests of Brazil to look for electric eels.
Season 4, Episode 9
July 14, 2014
The host travels to Guyana in search of Giant Wolffish.
Season 4, Episode 8
July 7, 2014
Gigantic, freshwater stingrays are observed.
Season 4, Episode 7
March 28, 2014
The invasive wels catfish is studied in Spain's Ebro River, where biologists fear it could be destroying the local ecosystem.
Season 4, Episode 6
August 9, 2013
The host joins shark experts in Florida to explore rumors of bull sharks moving inland.
Season 4, Episode 5
August 2, 2013
The wallago catfish, which can grow up to six feet long and weigh more than 175 pounds, is sought in Southeast Asia.
Season 4, Episode 4
July 26, 2013
The host heads to Thailand to search for a giant goldfish.
Season 4, Episode 3
July 19, 2013
The host searches for a green sturgeon, a fish that can grow up to 7 feet long.
Season 4, Episode 2
July 12, 2013
The host searches for hard-to-find king salmon in Alaska.
Season 4, Episode 1
July 5, 2013
The host teams up with a Mississippi fisherman to lure a giant Southern catfish in the Season 4 premiere.
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