H2O: Just Add Water
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.
Sign in to add to your listWhat critics are saying
Verdicts use the same scale as your list: highly recommended through avoid — plus optional scores and blurbs.
Nobody on Critic, Sir! has logged a verdict for this title yet. The silence is either respectful or suspicious.
Sign in and use Add to My List below to share your own verdict.
Trailer
H2O: Just Add Water Trailer
Where to Watch(AU)
Streaming data provided by JustWatch via TMDB.
Cast
Seasons
1.Metamorphosis
6.607-07-200624mThree 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 inc...
2.Pool Party
5.414-07-200624mAnnoying 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 onl...
3.Catch of the Day
5.621-07-200624mRikki, 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...
4.Party Girls
5.828-07-200624mEmma 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...
5.Something Fishy
5.404-08-200624mCleo'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 abo...
6.Young Love
5.011-08-200624mEmma gets into trouble babysitting her little brother Elliot. She goes to Lewis for help when Elliot develops a crush on Rikki.
7.Moon Spell
5.818-08-200624mMiss 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.The Denman Affair
5.025-08-200624mLewis 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
9.Dangerous Waters
5.401-09-200624mRikki 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.
10.The Camera Never Lies
6.008-09-200624mRikki 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 Zan...
11.Sink or Swim
5.815-09-200624mByron 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...
12.The Siren Effect
5.222-09-200624mThe full moon gives Cleo a power to put guys in a 'trance' and she suddenly gets a rush of admirers.
13.Shipwrecked
6.429-09-200624mEmma invites Miss Chathams to stay at her place and Zane overhears Miss Chathams concerning about 'her treasure'.
14.Surprise!
5.006-10-200624mCleo'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...
15.The Big Chill
7.013-10-200624mEmma 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.
16.Lovesick
7.720-10-200624mRumour 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.
17.Under the Weather
7.027-10-200624mThe 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.
18.Bad Moon Rising
7.703-11-200624mZane'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.
19.Hurricane Angela
4.710-11-200624mCleo and Kim are stuck with their cousin Angela who wants to go body boarding and causes a bird brained distraction when Cleo refuses.
20.Hook, Line and Sinker
6.517-11-200624mLewis 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 bal...
21.Red Herring
7.724-11-200624mEmma 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.
22.Fish Out Of Water
5.701-12-200624mEmma and Cleo are concerned about Rikki going out with Zane. They force Rikki to decide to either be with Zane or with them.
23.In Too Deep
7.708-12-200624mRikki finds a locket that looks the same as Miss Chatham's in a Jewellery shop and she is determined to get it.
24.Love Potion #9
7.715-12-200624mWith 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 scienc...
25.Dr. Danger
7.022-12-200624mIt'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 o...
26.A Twist in the Tail
7.029-12-200624mDr. Denman sets up a trap for the girls at Mako Island and Zane is forced to decide who he should be helping.
Watching Lists
Sign in to create and edit public lists.
Loading lists…
Purchase & Discovery
Find this title on Amazon
Digital
Prime Video & digitalAmazon mixes rent, buy, and Prime in one place — one search covers the usual options.
Physical edition
4K Blu-ray & physical releasesSearch on AmazonOfficial merchandise
Official-style merch searchApparel, collectibles, and moreAs an Amazon Associate, Critic, Sir! earns from qualifying purchases. Full disclosure