Extreme angler and freshwater detective Jeremy Wade takes his quest to the most remote locations on the planet. From the glacier fuelled rapids of Alaska to the underwater labyrinths of the Okavango Delta, Jeremy braves predator-filled waters to find creatures responsible for gruesome attacks and unsolved disappearances. This time he not only reels in mysterious and deadly monsters on rod and line but dives into the lairs of the aquatic beasts responsible, coming face to face with underwater killers in their element.