H2O: Just Add Water
S01:E11 - Sink or Swim
S01:É01 - S01:E01 - Metamorphosis
Cleo and Emma meet new girl, Rikki, and find themselves stuck on Mako Island where they are transformed into mermaids.
S01:É02 - S01:E02 - Pool Party
Annoying Miss Popularity, Miriam, is having a pool party and the girls want to go.
S01:É03 - S01:E03 - Catch of the Day
Rikki, Emma, and Cleo discover that sea turtles are being captured by fishing nets.
S01:É04 - S01:E04 - Party Girls
Emma decides that she is not going to have her annual sleepover party due to what has happened to them.
S01:É05 - S01:E05 - Something Fishy
Cleo's sister Kim finds her diary and thinks that Cleo and her friends are 'evil mermaids' and she plans to tell everyone.
S01:É06 - S01:E06 - Young Love
Rikki gains an admirer in Emma’s younger brother, Elliot, when she saves him from drowning.
S01:É07 - S01:E07 - Moon Spell
The effects of the full moon turns Emma into a carefree, wild mermaid. At her father’s birthday party she’s the opposite to her usual, organized self.
S01:É08 - S01:E08 - The Denman Affair
A charismatic newcomer, Dr. Denman, tempts Lewis with the promise of scientific fame and fortune.
S01:É09 - S01:E09 - Dangerous Waters
Rikki uses her abilities as a mermaid to earn some quick cash, she accidentally becomes involved in a fish smuggling operation.
S01:É10 - S01:E10 - The Camera Never Lies
Rikki enters a short film contest on the theme of 'Heroes' and decides to capture some nice underwater footage with her 'abilities'.
S01:É11 - S01:E11 - Sink or Swim
Byron asks Emma for help with swimming team and Emma has some trouble deciding whether or not to help out in her current situation.
S01:É12 - S01:E12 - The Siren Effect
Rikki sets Cleo up at a karaoke contest as a joke, where she is humiliated due to her lack of talent.
S01:É13 - S01:E13 - Shipwrecked
When the mysterious, old Miss Chatham's boat and home is declared unseaworthy, Emma invites her over to stay.
S01:É14 - S01:E14 - Surprise!
Cleo's 16th birthday is approaching and she thinks that her father is going to throw another embarrassing birthday party.
S01:É15 - S01:E15 - The Big Chill
Emma is put in charge of managing the juice bar.
S01:É16 - S01:E16 - Lovesick
A dolphin at Sea World will only eat from Cleo’s hand and when she has to sneak out to feed him, everyone thinks she has a boyfriend.
S01:É17 - S01:E17 - Under the Weather
A thunderstorm rolls in, leaving the girls little choice but to feign illness to avoid blowing their secret.
S01:É18 - S01:E18 - Bad Moon Rising
The full moon has come again, and the girls are taking every precaution they can imagine this time.
S01:É19 - S01:E19 - Hurricane Angela
Cleo and Kim are fighting like crazy and Cleo is pushed to breaking point.
S01:É20 - S01:E20 - Hook, Line and Sinker
Lewis enters the annual fishing derby. When Cleo sees him struggling, she decides to help him out with disastrous consequences.