H2O: Just Add Water poster
    TV Series

    H2O: Just Add Water

    IMDb7.3/10
    2006 - 2010
    24m/ep
    Ended
    Seasons: 3
    Episodes: 78

    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 contact with water.

    Created by: Jonathan M. Shiff
    Watch Trailer
    Share:

    Where to Watch

    Best deals:
    Availability checked less than a minute ago
    Streaming data provided byJustWatch

    Trying to watch this from United States?

    Some content may not be available in your region. Use a VPN to access streaming services from anywhere.

    Unlock with NordVPN

    Affiliate link • We may earn a commission at no extra cost to you

    Seasons & Episodes

    Metamorphosis

    1. Metamorphosis

    6.6

    Three very different teenage girls, Emma, Cleo and Rikki, facing everyday teenage problems. With a twist: they're mermaids; after discovering a magic place where they are given incredible powers over water that change their lives forever.

    7/7/200624 min
    Pool Party

    2. Pool Party

    5.4

    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.

    7/14/200624 min
    Catch of the Day

    3. Catch of the Day

    5.6

    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.

    7/21/200624 min
    Party Girls

    4. Party Girls

    5.8

    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.

    7/28/200624 min
    Something Fishy

    5. Something Fishy

    5.4

    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.

    8/4/200624 min
    Young Love

    6. Young Love

    5

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

    8/11/200624 min
    Moon Spell

    7. Moon Spell

    5.8

    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.

    8/18/200624 min
    The Denman Affair

    8. The Denman Affair

    5

    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

    8/25/200624 min
    Dangerous Waters

    9. Dangerous Waters

    5.4

    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.

    9/1/200624 min
    The Camera Never Lies

    10. The Camera Never Lies

    6

    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.

    9/8/200624 min
    Sink or Swim

    11. Sink or Swim

    5.8

    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.

    9/15/200624 min
    The Siren Effect

    12. The Siren Effect

    5.2

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

    9/22/200624 min
    Shipwrecked

    13. Shipwrecked

    6.4

    Emma invites Miss Chathams to stay at her place and Zane overhears Miss Chathams concerning about 'her treasure'.

    9/29/200624 min
    Surprise!

    14. Surprise!

    5

    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.

    10/6/200624 min
    The Big Chill

    15. The Big Chill

    7

    Emma is doing well at her new job at the JuiceNet cafe, but when she is left in charge, she has trouble managing her new employee, Rikki.

    10/13/200624 min
    Lovesick

    16. Lovesick

    7.7

    Rumour has it that Cleo has a boyfriend and her friends and family are trying to find out who he is. Meanwhile, Zane continues his search for the 'sea monster' he saw.

    10/20/200624 min
    Under the Weather

    17. Under the Weather

    7

    The girls have to fake sick as a result of a thunderstorm, so their secret won't be discovered at school. But their 'sickness' attracts the attention of doctors.

    10/27/200624 min
    Bad Moon Rising

    18. Bad Moon Rising

    7.7

    Zane's quest to find the 'sea monster' has led him to Mako Island. Rikki loses control of her powers as a result of the full moon and Zane finds her.

    11/3/200624 min
    Hurricane Angela

    19. Hurricane Angela

    4.7

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

    11/10/200624 min
    Hook, Line and Sinker

    20. Hook, Line and Sinker

    6.5

    Lewis enters the annual fishing derby. When Cleo sees him struggling, she decides to help him out with disastorous consequnces. Meanwhile, Rikki and Zane are trapped on a hotel balcony.

    11/17/200624 min
    Red Herring

    21. Red Herring

    7.7

    Emma decides to change her look by colouring her hair red. Though nothing is that simple when you're half-mermaid. Zane asks Rikki out on a date.

    11/24/200624 min
    Fish Out Of Water

    22. Fish Out Of Water

    5.7

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

    12/1/200624 min
    In Too Deep

    23. In Too Deep

    7.7

    Rikki finds a locket that looks the same as Miss Chatham's in a Jewellery shop and she is determined to get it.

    12/8/200624 min
    Love Potion #9

    24. Love Potion #9

    7.7

    With the school dance coming up, Emma and Cleo hope Byron and Lewis will ask them out. Meanwhile, Miss Chatham and Lewis are arguing about which is more important, magic and science.

    12/15/200624 min
    Dr. Danger

    25. Dr. Danger

    7

    It's time for Emma's family's annual vacation trip, but she can't go as the risks are too high. But all her excuses don't go very well with her family. Meanwhile, with the return of Dr. Denman, Zane is closer than ever to cracking the girl's secret.

    12/22/200624 min
    A Twist in the Tail

    26. A Twist in the Tail

    7

    Dr. Denman sets up a trap for the girls at Mako Island and Zane is forced to decide who he should be helping.

    12/29/200624 min

    Cast

    We use cookies to enhance your experience. By continuing to visit this site, you agree to our use of cookies. Learn more