The Aleutian Islands are home to some of the most remote communities on earth. Jeremy Wade sets out to investigate reports of strange, alien species in the waters surrounding the islands and the disappearance of fish that have been there for generations.

A recent sighting in South Africa of a bizarre beast - half human, half fish - draws Jeremy Wade into the story of creature with ancient origins and a fearsome reputation.

Jeremy Wade travels to Alaska to investigate the disappearance of the majestic king salmon. His search will take him through the heart of grizzly bear territory, remote native communities and ultimately the Pacific Ocean as he follows a trail of evidence.

Jeremy is on a journey to catch a monstrous, man-sized pike, starting in the lakes of Ireland and leading to unfished waters on the edge of the Arctic Circle in Sweden.

Tasmania is home to species found nowhere else on earth, including a colossal freshwater beast capable of breaking a person's arm. Jeremy Wade will venture into the island's dense, eerie forests in search of this formidable creature

Something is wiping out the fish in the Australia's Fitzroy River, and Jeremy Wade is determined to discover the cause. Evidence points to the arrival of a new top predator, but could something far more insidious be spreading into Western Australia?

Jeremy heads to Australia to investigate a terrifying underwater attack by a six-foot beast in a remote Outback river. As his investigation unfolds, Jeremy is faced with the exciting possibility that a giant predator he once thought extinct could be back.