River Monsters Season 4 Episode 5

An elite handful of fish are capable of living and thriving in both fresh and saltwater. Among these specialists are aggressive man-eaters, venomous giants and a wickedly armed beast that hails from a bygone age. In this special edition of River Monsters, biologist and extreme angler Jeremy Wade relives his thrilling encounters with some of these fearsome intruders that swim in from beyond the surf.