1. Demon Fish - Jeremy Wade journeys up the Congo River in search of the ferocious Goliath Tiger Fish, but he will need the help of a local witch doctor to catch one. More info ...

Fans of River Monsters know On Sunday night’s Mighty Rivers, host Jeremy Wade is searching for the endangered huchen or Danube salmon, a large species of freshwater fish in the salmon family.

5. Killer Catfish - Extreme angler Jeremy Wade goes on the hunt for killer catfish, as he follows stories of a man swallowed whole by a giant fish and another person attacked in a most unnatural ...