Season 4 - Episode Guide

Angler Jeremy Wade normally travels into the most remote regions searching for freshwater monsters, but recently he's been getting reports of killers from an unexpected location. This two-hour special follows Wade's investigation of America's killers.

From the Okavango swamps in southern Africa there are stories of a piranha-like fish that hunts in marauding packs, tearing into other fish, and even human flesh. Angler Jeremy Wade heads into the watery labyrinth to track down this deadly swarm.

Jeremy Wade takes on Africa's wild Zambezi River to unmask an invisible predator that's dragging fisherman to their deaths. Crocs and hippos are guilty of killing many in plain view, yet it seems there's another monster stalking these deadly waters.

Angler Jeremy Wade returns to the remote rivers of India's Himalayas to investigate a fresh spate of savage attacks. Jeremy thinks he knows the perpetrator's identity, but his plans to catch the monster hit trouble when he learns it's a sacred animal.

Extreme angler Jeremy Wade heads to Russia's remote Amur River, where the mysterious deaths of three men appear to be linked with a reclusive freshwater giant. The prime suspect is a predator that can top a ton and exceed eighteen feet in length.

When he hears of a recent bloody attack in a remote Mongolian river, angler Jeremy Wade wonders if it could be the work of a giant fish so rare that it's more legend than fact. Pound for pound, this man-sized monster is said to be one of the strongest.

Jeremy Wade returns to Australia's predator-packed Fitzroy River in search of one of the world's rarest and least known fish - the Northern River Shark. It's so elusive that only twenty have ever been caught.

Jeremy Wade explores the hostile wildness of the Essequibo, Guyana's largest river and one of South Americas best kept secrets. Armed with only old journals and his rod, Jeremy is on a mission to discover if monsters of the past still exist.