Jeremy Wade is with a commercial fishing boat in Alaska searching for giant halibut.

Jeremy heads to Australia to investigate a terrifying underwater attack by a 6-foot beast in a remote Outback river.

Fisherman and adventurer Jeremy Wade travels to Alaska to discover what has happened to the king salmon.

Fisherman and adventurer Jeremy Wade travels to Lake Garda in northern Italy to investigate a 16th-century monster fish.

Popular Animal Planet personality Jeremy Wade, the nine-season star of the network's top-rated series "River Monsters," returns to waterways across the globe to investigate reports of the unimaginable and unexplained. He takes viewers on journeys beneath the water to remote areas, to islands lost in time and out into the open ocean to investigate reports that include entire fish species suddenly disappearing; unexplained sightings of mythical beasts; once thriving rivers now empty; and genetic oddities that may have produced the biggest monsters yet.

Jeremy Wade is not a fisherman; he's an "extreme angler" in search of the biggest and most dangerous freshwater fish, the kind with a taste for human flesh. This action-adventure series also features Wade illustrating how these river monsters are constructed to kill.

New science and amazing demonstrations explain the bizarre, the brilliant and the most mind-blowing animal behaviors.