In Argentina’s Paraná River, a young girl was killed by a river stingray. Venturing to a country he’s never been to before, to face a fish he’s never heard of before, Jeremy travels to this river to find the killer: the shorttail river stingray, which grows to 6 feet across. Unlike Thailand’s giant freshwater stingray, this fish isn’t long or wide. Instead it is thick and heavy, with a short, clublike tail with which it delivers its venomous sting. After hearing many more reports of attacks, Jeremy becomes determined to face this beast, which can glue itself to the river bottom like a suction cup. Its strength is then proven as Wade hooks into this tank-like fish in what is his longest battle to date.