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.

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.

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.

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 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.