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The Worst Episodes of H2O: Just Add Water

Every episode of H2O: Just Add Water ranked from worst to best. Explore the Worst Episodes of H2O: Just Add Water!

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H2O: Just Add Water revolves around three teenage girls facing everyday teen problems with an added twist: they cope with the burden of growing a giant fin and transforming into mermaids whenever they come in

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Episode Rankings

  1. #1 Worst Episode
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    H2O: Just Add Water Season 2 Episode 13 - Moonwalker
    4.0/10(1 votes)

    #1 - Moonwalker

    S2:E13

    On the night of a full moon, Lewis, Emma, Rikki and Charlotte accompany Cleo's family for a camping trip at Mako. When all three girls are affected by the moon, they are unable to stop the curious Charlotte...

    Director:Unknown
    Writer:Unknown

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  2. H2O: Just Add Water Season 1 Episode 19 - Hurricane Angela
    4.7/10(3 votes)

    #2 - Hurricane Angela

    S1:E19

    Cleo and Kim are stuck with their cousin Angela who wants to go body boarding and causes a bird brained distraction when Cleo refuses.

    Director:Jeffrey Walker
    Writer:Unknown

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  3. H2O: Just Add Water Season 1 Episode 6 - Young Love
    5.0/10(4 votes)

    #3 - Young Love

    S1:E6

    Emma gets into trouble babysitting her little brother Elliot. She goes to Lewis for help when Elliot develops a crush on Rikki.

    Director:Colin Budds
    Writer:Sam Carroll

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  4. H2O: Just Add Water Season 1 Episode 8 - The Denman Affair
    5.0/10(4 votes)

    #4 - The Denman Affair

    S1:E8

    Lewis is offered a great job with a marine biologist, but the girls are concerned that his interest will cause him to reveal too much information

    Director:Colin Budds
    Writer:Chris Anastassiades

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  5. H2O: Just Add Water Season 1 Episode 14 - Surprise!
    5.0/10(5 votes)

    #5 - Surprise!

    S1:E14

    Cleo's 16th birthday is approaching and she thinks that her father is going to throw another embarrasing birthday party. Meanwhile, Zane tries to find the 'sea monster' that he saw when he almost drowned.

    Director:Jeffrey Walker
    Writer:Chris Anastassiades

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  6. H2O: Just Add Water Season 1 Episode 12 - The Siren Effect
    5.2/10(4 votes)

    #6 - The Siren Effect

    S1:E12

    The full moon gives Cleo a power to put guys in a 'trance' and she suddenly gets a rush of admirers.

    Director:Colin Budds
    Writer:Susan MacGillicuddy

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  7. H2O: Just Add Water Season 1 Episode 2 - Pool Party
    5.4/10(5 votes)

    #7 - Pool Party

    S1:E2

    Annoying Miss Popularity, Miriam, is having a pool party and the girls want to go. But being around water is risky, especially when Zane tosses Cleo into the pool. Lewis is the only one around to help so he finds out their secret.

    Director:Colin Budds
    Writer:Deb Cox

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  8. H2O: Just Add Water Season 1 Episode 5 - Something Fishy
    5.4/10(5 votes)

    #8 - Something Fishy

    S1:E5

    Cleo's sister Kim finds her diary and thinks that Cleo and her friends are 'evil mermaids' and she plans to tell everyone. Meanwhile, Lewis goes to Mako Island to find out more about what happened to the girls.

    Director:Colin Budds
    Writer:Joanne Watson

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  9. H2O: Just Add Water Season 1 Episode 9 - Dangerous Waters
    5.4/10(5 votes)

    #9 - Dangerous Waters

    S1:E9

    Rikki is offered a job to collect rare fish. At first it seems perfectly fine, until she finds out the person that hired her is selling the fish for large profits.

    Director:Colin Budds
    Writer:Anthony Morris

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  10. H2O: Just Add Water Season 1 Episode 3 - Catch of the Day
    5.6/10(5 votes)

    #10 - Catch of the Day

    S1:E3

    Rikki, Emma and Cleo discover that sea turtles are being captured by fishing nets. When Rikki and Emma attempt to rescue the turtles by cutting the nets, it causes the fisherman to think that there is a rogue shark roaming their ocean.

    Director:Colin Budds
    Writer:Simon Butters

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  11. H2O: Just Add Water Season 1 Episode 22 - Fish Out Of Water
    5.7/10(3 votes)

    #11 - Fish Out Of Water

    S1:E22

    Emma and Cleo are concerned about Rikki going out with Zane. They force Rikki to decide to either be with Zane or with them.

    Director:Jeffrey Walker
    Writer:Unknown

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  12. H2O: Just Add Water Season 3 Episode 1 - The Awakening
    5.7/10(3 votes)

    #12 - The Awakening

    S3:E1

    Cleo and Rikki enter their final year of high school. They make friends with a new girl, Bella, and a new boy, Will. However, they encounter a new force on Mako Island that has the power to turn water against the girls.

    Director:Jeffrey Walker
    Writer:Unknown

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  13. H2O: Just Add Water Season 1 Episode 4 - Party Girls
    5.8/10(8 votes)

    #13 - Party Girls

    S1:E4

    Emma decides that she is not going to have her annual sleepover party due to what has happened to them. But Rikki and Cleo try to convince her otherwise. Meanwhile, Lewis conducts experiments on the girls.

    Director:Colin Budds
    Writer:Anthony Morris

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  14. H2O: Just Add Water Season 1 Episode 7 - Moon Spell
    5.8/10(5 votes)

    #14 - Moon Spell

    S1:E7

    Miss Chatham gives Cleo a warning that she doesn't quite understand. Until Emma finds herself in a trance and unable to change back from a mermaid under a full moon.

    Director:Colin Budds
    Writer:Max Dann

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  15. H2O: Just Add Water Season 1 Episode 11 - Sink or Swim
    5.8/10(6 votes)

    #15 - Sink or Swim

    S1:E11

    Byron asks Emma for help with training the school's swimming team and Emma has some trouble deciding whether or not to help out in her current situation. Meanwhile, Lewis continues to experiment on the girls, which annoys Rikki.

    Director:Colin Budds
    Writer:Max Dann

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  16. H2O: Just Add Water Season 1 Episode 10 - The Camera Never Lies
    6.0/10(5 votes)

    #16 - The Camera Never Lies

    S1:E10

    Rikki enters a short film contest on the theme of 'Heroes' and decides to capture some nice underwater footage with her 'abilities'. Meanwhile, Emma is interviewing her mum and Zane and Lewis are planning to rennact Dr. Bennet's windsurfing record.

    Director:Colin Budds
    Writer:Deb Cox

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  17. H2O: Just Add Water Season 3 Episode 2 - Jungle Hunt
    6.0/10(2 votes)

    #17 - Jungle Hunt

    S3:E2

    With Will finding out about Mako Island, Bella tries to misdirect his search so that he will not discover the Moon Pool. However, Lewis and the girls find out that the Moon Pool is different.

    Director:Jeffrey Walker
    Writer:Unknown

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  18. H2O: Just Add Water Season 3 Episode 3 - Keep Your Enemies Close
    6.0/10(2 votes)

    #18 - Keep Your Enemies Close

    S3:E3

    At the marine park, Cleo seeks a job as a dolphin trainer. Meanwhile, until she and Bella reach an understanding, Rikki fires Nate's band, preventing them from playing in the cafe.

    Director:Jeffrey Walker
    Writer:Unknown

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  19. H2O: Just Add Water Season 3 Episode 4 - Valentines Day
    6.0/10(2 votes)

    #19 - Valentines Day

    S3:E4

    Cleo has to put off Lewis' romance plans in order to help Kim with her crazy love life. Meanwhile, Don meets up with a National Parks Manager, Samantha, and the two decide to date.

    Director:Jeffrey Walker
    Writer:Unknown

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  20. H2O: Just Add Water Season 3 Episode 5 - Big Ideas
    6.0/10(2 votes)

    #20 - Big Ideas

    S3:E5

    To get more interest in the cafe, Zane develops a dirt bike race. However, Rikki finds out that it is a scam. She and Bella decide to team up to teach him a lesson. Meanwhile, Lewis and Cleo find out something interesting about mixing the waters in the Moon Pool

    Director:Jeffrey Walker
    Writer:Unknown

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  21. H2O: Just Add Water Season 3 Episode 6 - Secrets & Lies
    6.0/10(2 votes)

    #21 - Secrets & Lies

    S3:E6

    Bella tries to get close to Will but when Bella goes to his place she sees him with another girl. Meanwhile Lewis tries to test the water from the moon pool but gets caught by his teacher.

    Director:Jeffrey Walker
    Writer:Unknown

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  22. H2O: Just Add Water Season 3 Episode 7 - Happy Families
    6.0/10(2 votes)

    #22 - Happy Families

    S3:E7

    Cleo's family and Sam go on a picnic to the beach, which leads to tension when Cleo refuses to go near the water. Kim abuses the fact that her father is happy in order to get lots of gifts. Will's sister Sophie competes with Bella to get the job Bella wanted at Rikki's Cafe.

    Director:Jeffrey Walker
    Writer:Unknown

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  23. H2O: Just Add Water Season 3 Episode 8 - Kidnapped
    6.0/10(2 votes)

    #23 - Kidnapped

    S3:E8

    During a full moon, the girls stay at Cleo's and Bella is attacked by the water creature. At the same time, Will decides to return to the moon pool after making the connection between his previous encounter with the moon pool waterfall and the timing of the full moon.

    Director:Jeffrey Walker
    Writer:Unknown

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  24. H2O: Just Add Water Season 3 Episode 10 - Revealed
    6.0/10(2 votes)

    #24 - Revealed

    S3:E10

    After Bella gives Will a shell-like fossil she found while swimming, Will becomes suspicious as the fossil is of a rare kind. Rikki realises how close Will is to finding out their mermaid secret and warns Bella to stay away from Will.

    Director:Jeffrey Walker
    Writer:Unknown

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  25. H2O: Just Add Water Season 3 Episode 11 - Just A Girl At Heart
    6.0/10(2 votes)

    #25 - Just A Girl At Heart

    S3:E11

    Bella helps Will with his free-diving training but when she realises he's more interested in her as a mermaid than a girl, she's hurt. Rikki and Cleo have to improvise when the cafe's first corporate function is actually a children‟s party.

    Director:Jeffrey Walker
    Writer:Unknown

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Worst Episodes Summary

"Moonwalker" is the worst rated episode of "H2O: Just Add Water". It scored 4/10 based on 1 votes. Directed by Unknown and written by Unknown, it aired on 12/21/2007. This episode scored 0.7 points lower than the second lowest rated, "Hurricane Angela".