River Monsters travels worldwide with host, biologist and extreme angler Jeremy Wade to explore freshwater mysteries and local folklore, possibly debunk these myths and track down these harrowing tales. The show has taken viewers to Germany, Australia, India, Brazil, Ethiopia, Uganda, South Africa, The Republic of Congo, and Texas.
In the first season, Wade's weekly quest had him in search of Piranha, Alligator gar, Wels catfish, Goonch catfish, Bull shark, Piraiba/Candiru, and Arapaima, all supposedly deadly creatures shrouded with mystery. The show also focuses on explaining the creature's feeding habits.