DocumentaryAction & AdventureRealityAnimal Planet

The Worst Episodes of River Monsters

Every episode of River Monsters ranked from worst to best. Explore the Worst Episodes of River Monsters!

Worst episode
S9E4 Return of the Killer Catfish
7.546 votes
Best episode
S9E6 Malaysian Lake Monster
9.044 votes
Top season
Season 8
8.8avg
Binge time
1d 5h
59 episodes
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons9

All123456789

Episode Rankings

  1. #1 Worst Episode
    Click to reveal
    River Monsters Season 9 Episode 4 - Return of the Killer Catfish
    7.5/10(46 votes)

    S9:E4

    Jeremy Wade investigates a case in Nepal that sounds strangely familiar - a lone fisherman dragged off his feet & into a mountain river by an unseen creature. Is the original river monster, the goonch catfish, back from the brink?

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  2. River Monsters Season 1 Episode 3 - Alligator Gar
    7.7/10(139 votes)

    S1:E3

    In the Deep South is a river monster with the reputation of a devil. Blamed for a series of violent attacks on humans, this creature is said to be as vicious as a shark and as big as an alligator. The authorities said it should be annihilated, but not all are so quick to condemn it. Extreme angler Jeremy Wade heads to Texas on its trail in an attempt to uncover the facts behind this animal's notoriety. Helped by local expertise and with his own wits honed sharp, he finds new ways to reveal the truth about the monster alligator gar.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  3. River Monsters Season 1 Episode 4 - European Maneater
    7.9/10(126 votes)

    S1:E4

    Reports of an attack on a swimmer in a lake close to Berlin is the starting point for an intense and shocking investigation. Wade travels to Germany where he meets modern-day victims of a beast that has been raising its snout above the surface of fresh waters in Europe regularly over the past 700 years. Investigations travel to Spain where Wade discovers firsthand that the wels catfish is a living, breathing aggressive predator growing to man-eating proportions capable of everything depicted in medieval records and more.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  4. River Monsters Season 1 Episode 7 - Freshwater Shark
    7.9/10(105 votes)

    S1:E7

    No fish inspires the same terror as the shark, a creature with an insatiable hunger for brutal violence. But at least these killers are confined to the oceans. Or are they? Expert angler Jeremy Wade investigates whether it's possible for sharks to live in freshwater, and if so just how far inland these vicious predators will bring their reign of terror.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  5. River Monsters Season 3 Episode 1 - The Mutilator
    7.9/10(95 votes)

    S3:E1

    Jeremy Wade travels to Papua New Guinea to investigate a spate of bizarre deaths on the Sepik River. An island renowned for cannibalism, macabre rituals, and head hunters, Wade is on the trail of a creature reported to devour certain male body parts.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  6. River Monsters Season 2 Episode 3 - Congo Killer
    8.0/10(103 votes)

    S2:E3

    Jeremy Wade travels to one of the few rivers left on earth that will still test a fisherman. The Congo, a river steeped in legends... and soaked in violence. One spirit in particular is said to lure fishermen from their boats to their death.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 BEST Episodes of River Monsters

    READ
  7. River Monsters Season 2 Episode 4 - Alaskan Horror
    8.0/10(101 votes)

    S2:E4

    Extreme angler Jeremy Wade searches for the lethal lake monster of native legend that's been dragging people down to an icy grave for centuries. He ends up landing the largest fish he's ever caught, but is this the monster?

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  8. River Monsters Season 5 Episode 5 - Vampires of the Deep
    8.0/10(73 votes)

    S5:E5

    Jeremy embarks on a punishing mission to the heart of a thundering waterfall in the Pacific Northwest to battle an ancient river monster said to rise from the murky depths to attack swimmers.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  9. River Monsters Season 1 Episode 1 - Piranha
    8.1/10(158 votes)

    S1:E1

    In 1976 a packed coach crashed into the Amazon killing 39 people. By the time the bodies were pulled out by rescuers some had been so viciously mutilated by piranha they could only be identified by their clothes. Tracking down survivors and eyewitnesses of piranha attacks, Jeremy Wade reveals why the piranha fills our nightmares.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  10. River Monsters Season 3 Episode 3 - Silent Assassin
    8.1/10(76 votes)

    S3:E3

    Jeremy Wade travels to the Paraná River in the remote corner of Argentina to investigate the death of a young girl. This creature is not armed with bone-crunching jaws or razor sharp teeth, but a razor-sharp blade tipped with tissue-destroying venom.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  11. River Monsters Season 4 Episode 1 - American Killers
    8.1/10(74 votes)

    S4:E1

    In the suspense-filled two-hour premiere, Jeremy Wade treks across the United States in search of deadly river monsters living in the nation's waterways. Wade ventures from the popular Indian River Lagoon in Florida where unsuspecting water enthusiasts are faced with what could become a modern day Jaws, to the Lake of the Ozarks in Missouri, where underwater hunters have reached man-eating proportions.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  12. River Monsters Season 4 Episode 3 - Invisible Executioner
    8.1/10(69 votes)

    S4:E3

    It's common knowledge that crocodiles and hippos are deadly predators in Zambian waterways, but it seems there's another monstrous beast stalking the treacherous Zambezi River. The locals call this river monster "the Mazunda" but Jeremy Wade is unfamiliar with any fish by that name. Will he uncover what the sinister creature — said to be able to swallow a child — really is?

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  13. River Monsters Season 4 Episode 4 - Asian Slayer
    8.1/10(67 votes)

    S4:E4

    When Jeremy Wade travels to India's Himalayas to investigate grisly river attacks, he is surprised to learn that the suspected culprit is a sacred animal. Does he heed warnings from the local people that he'll be cursed for life if he touches the creature, or will he pursue his need to solve the mystery?

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  14. River Monsters Season 9 Episode 1 - Killers From the Abyss
    8.1/10(44 votes)

    S9:E1

    Wade takes on the biggest investigation of his career -- to unravel what happened to over 1,000 passengers of the RMS Laconia, torpedoed in the mid-Atlantic; he travels the globe, battling giant fish, massive sharks and a deep-sea monster.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  15. River Monsters Season 9 Episode 2 - Ice Cold Killer
    8.1/10(38 votes)

    S9:E2

    Traveling from London to Greenland and on to Norway, Wade follows the trail of an unknown sea monster; fishing through ice to extreme depths, he attempts to reel in this monster before the full fury of an Arctic storm hits.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  16. River Monsters Season 2 Episode 6 - Hidden Predator
    8.2/10(99 votes)

    S2:E6

    The biggest bull shark ever recorded was caught in South Africa, in a river. Was this monstrous freshwater catch a horrifying fluke, or are there more shark giants prowling this river? Jeremy Wade heads to South Africa to see if he can land a monster!

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  17. River Monsters Season 1 Episode 2 - Killer Catfish
    8.3/10(121 votes)

    S1:E2

    Two years ago, on the treacherous Kali River, high in the mountains of Northern India, Jeremy Wade unearthed the mother of all fisherman's tales and the ultimate freshwater horror: a super-sized freshwater fish turned man-eater. Jeremy takes on the biggest, toughest challenge he's ever faced as he heads back to the Himalayas to separate fact from fiction and track down the monstrous beast.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  18. River Monsters Season 3 Episode 2 - Flesh Ripper
    8.3/10(82 votes)

    S3:E2

    Jeremy Wade is on the trail of a mysterious man-eater described over 200 years ago by a famous explorer. Is the 8-ft beast in question a mere legend, or could it be the same, flesh & blood creature that has attacked divers & children?

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  19. River Monsters Season 3 Episode 5 - Electric Executioner
    8.3/10(81 votes)

    S3:E5

    Jeremy Wade travels to Brazil's "wild west" in search of a river monster that has killed three cowboys. The search for the culprit sends him deep into prospecting cattle country, where he discovers the shocking truth about a fish he's never caught before. He has to combat all his fears to catch this monster, and after a long chase, Jeremy finally corners his elusive prey in the most unexpected place. All he has to do then is catch it without getting killed.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  20. River Monsters Season 3 Episode 7 - Jungle Killer
    8.3/10(81 votes)

    S3:E7

    Jeremy Wade sets out to discover the true river monster of South America. Piranhas get all the press, but is there a more fearsome predator lurking in its rivers? Tipped off by an account of an attack on a diver, Jeremy soon discovers that there is a real monster to find. Tipped off by the the local Amerindian tribe, Jeremy heads deeper and deeper into the remote jungles of Suriname to come face to face with a jungle killer like no other.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  21. River Monsters Season 5 Episode 2 - Atomic Assassin
    8.3/10(70 votes)

    S5:E2

    Jeremy Wade searches for a monster that leads him to the site of the worst nuclear accident in history, Chernobyl. In a nerve-shredding race against radiation & time, he searches for the perpetrator of a series of grizzly attacks.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  22. River Monsters Season 4 Episode 6 - Mongolian Mauler
    8.3/10(69 votes)

    S4:E6

    In Mongolia, Jeremy Wade hopes to reel in a rare river monster that’s become legendary. Pound for pound, this man-sized monster is said to be one of the world's strongest fighters. Could the rivers here still be home to a beast that many have heard about but few have seen? While Wade is on the hunt, he may be hunted himself as armed outlaws lurk in the wilderness surrounding the remote river.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  23. River Monsters Season 7 Episode 5 - South Pacific Terrors
    8.3/10(54 votes)

    S7:E5

    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.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  24. River Monsters Season 9 Episode 3 - Coral Reef Killer
    8.3/10(48 votes)

    S9:E3

    When a snorkeler is impaled & killed by an unseen underwater assailant in the waters surrounding the island of Sulawesi in Indonesia, Jeremy Wade travels to the islands to investigate a spate of similar attacks across the region.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  25. River Monsters Season 1 Episode 5 - Amazon Assassins
    8.4/10(115 votes)

    S1:E5

    In the darkest depths of the Amazon lurks a dinosaur. Legends tell of an evil spirit inhabiting an enormous fish. Taller than a man, it is covered in scales and crushes its prey with a tongue made of bone. Jeremy Wade has encountered this creature once before, and he came out second best. He's taking no chances in the rematch.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

Worst Episodes Summary

"Return of the Killer Catfish" is the worst rated episode of River Monsters. It scored 7.5/10 from 46 votes. Written and directed by Unknown, it aired on May 14, 2017. This episode scored 0.2 points lower than the second lowest rated, "Alligator Gar".

Keep going

Browse River Monsters by season

If you like River Monsters