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.

This season Jeremy Wade leaves behind his beloved rivers & heads into new territory- the open ocean. Faced with stormy seas, deep-water dives, & extreme encounters- will Jeremy & his crew survive ...

2. Alligator Gar - Extreme angler Jeremy Wade heads to Texas on the trail of a river monster said to be as vicious as a shark and as big as an alligator - the monstrous alligator gar. More info ...

River Monsters 55 episodes Jeremy Wade investigates the myth of the freshwater shark as he follows up reports of the tragic death of a young man and a bloody attack on a racehorse.