ITV4 River Monsters Catch up on the ITV Hub Extreme angler, Jeremy Wade, is on the hunt for freshwater fish with a taste for human flesh. 5 episodes available to watch Share this programme: Copied to clipboard Share on Facebook Share on Twitter Copy link to share Series 8 Latest 1. Deep Sea Demon Wed Wednesday 17 Mar 8pm Jeremy Wade goes in search of the truth behind the sea serpent legend. Series 4 7. Asian Slayer Thu Thursday 29 Apr 10.20am Jeremy Wade travels to the Himalayas to investigate river attacks. 6. Russian Killer Thu Thursday 15 Apr 5.25pm The disappearance of three men in Russia proves to be a baffling case for Jeremy Wade. 5. Phantom Assassin Sun Sunday 2 May 9.10am Jeremy Wade returns to Australia's Fitzroy River on his toughest quest yet. 4. Mongolian Mauler Wed Wednesday 28 Apr 4.55pm In Mongolia, Jeremy Wade investigates a rare giant fish.