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Season guide

H2O: Just Add Water: Season 1

26 episodes Premiered Jul 7, 2006 Updated Jul 19, 2026
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Episodes

S1·E1

Metamorphosis

Jul 7, 2006 · 24 min

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 inc

S1·E2

Pool Party

Jul 14, 2006 · 24 min

Miriam is having a pool party and Cleo considers going despite the risks of being around water. Meanwhile, Emma contemplates her future as a swimmer and Rikki makes a new discovery

S1·E3

Catch of the Day

Jul 21, 2006 · 24 min

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

S1·E4

Party Girls

Jul 28, 2006 · 24 min

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

S1·E5

Something Fishy

Aug 4, 2006 · 24 min

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 abo

S1·E6

Young Love

Aug 11, 2006 · 24 min

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

S1·E7

Moon Spell

Aug 18, 2006 · 24 min

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.

S1·E8

The Denman Affair

Aug 25, 2006 · 24 min

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

S1·E9

Dangerous Waters

Sep 1, 2006 · 24 min

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.

S1·E10

The Camera Never Lies

Sep 8, 2006 · 24 min

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 Zan

S1·E11

Sink or Swim

Sep 15, 2006 · 24 min

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

S1·E12

The Siren Effect

Sep 22, 2006 · 24 min

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

S1·E13

Shipwrecked

Sep 29, 2006 · 24 min

Emma invites Miss Chatham to stay at her place and Zane overhears Miss Chatham's concerns about 'her treasure'.

S1·E14

Surprise!

Oct 6, 2006 · 24 min

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

S1·E15

The Big Chill

Oct 13, 2006 · 24 min

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.

S1·E16

Lovesick

Oct 20, 2006 · 24 min

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.

S1·E17

Under the Weather

Oct 27, 2006 · 24 min

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.

S1·E18

Bad Moon Rising

Nov 3, 2006 · 24 min

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.

S1·E19

Hurricane Angela

Nov 10, 2006 · 24 min

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

S1·E20

Hook, Line and Sinker

Nov 17, 2006 · 24 min

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 bal

S1·E21

Red Herring

Nov 24, 2006 · 24 min

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.

S1·E22

Fish Out Of Water

Dec 1, 2006 · 24 min

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

S1·E23

In Too Deep

Dec 8, 2006 · 24 min

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

S1·E24

Love Potion #9

Dec 15, 2006 · 24 min

With the school dance coming up, Emma and Cleo hope Byron and Lewis will ask them out. Meanwhile, Miss Chatham and Lewis argue about which has more merit – magic or science.

S1·E25

Dr. Danger

Dec 22, 2006 · 24 min

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 o

S1·E26

A Twist in the Tail

Dec 29, 2006 · 24 min

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