Jeremy journeys through Canada's backwaters to track down a 20-foot lake monster that attacks humans - a predator with a mouth said to resemble a bear-trap.

For years fishermen have been vanishing in Alaska’s remote and unforgiving wilderness - their deaths unseen, their bodies never found. For freshwater detective Jeremy Wade, a recent fatal incident sends him on a search for possible suspects.

Jeremy Wade returns to Africa’s Okavango Delta to investigate a pack-hunting carnivore blamed for mauling the victims of a capsized boat. This time, Jeremy decides to put on his dive gear and offer himself as live bait in croc-infested waters.

A disturbing report from Southeast Asia, of something in the water that's sliced cleanly through a young man's testicle, is enough to lure freshwater detective Jeremy Wade to the shores of the Mekong - a river long renowned for its monstrous fish.

In Fiji, people are being attacked from unseen assailants in the water, but it's not clear if there are multiple culprits, or a single persistent perpetrator. Jeremy Wade battles tropical storms and thick jungle in an all-out search for a culprit.

Jeremy Wade is on the trail of horrifying killers from the depths of time. Fearsome, prehistoric beasts are brought back to life using cutting edge technology and recently unearthed fossils in a quest to find the greatest river monster of all time.