River Monsters

Extreme fishing series. When a mystery sea monster washes up on a British beach, freshwater detective Jeremy Wade sets off on a journey to unmask this beast and find out if it poses any threat to humans - his journey takes him to London, where he digs for clues among Charles Darwin's historic specimens, to the frozen waters of Greenland where he ice fishes deeper than he's ever fished before and on to the fjords of Norway, where he attempts to reel in one of these sea monsters before an Arctic storm rolls in.